Top 5 Biggest Tire & Wheel Mistakes You Shouldn't Make

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SILCA Velo

SILCA Velo

Күн бұрын

Пікірлер: 348
@andrewc662
@andrewc662 8 ай бұрын
I always find that warm tires are easier to install than a cold one. I usually put them in the sun for a few minutes before installing. The tires seem to be more flexible when warm.
@SILCAVelo
@SILCAVelo 8 ай бұрын
That's a great tip!
@korsveien
@korsveien 8 ай бұрын
I put them in the bathroom (my warmest room) 11:04 over night before installing so they’re 26 degrees Celsius when I install them instead of being 15 degrees. It’s often the difference from an easy install and a hard install. I also bought the plyer thingie and it’s absolutely worth it.
@adamolig3865
@adamolig3865 8 ай бұрын
Under the more is better theory, popping that tire in the oven at 350F for 45 min will make it super easy to install... or will make banana bread
@michaelhotten752
@michaelhotten752 8 ай бұрын
great tip on the tires. I put my tubeless tape in the sun for a few minutes before applying. Makes the adhesive a little tackier.
@JibbaJabber
@JibbaJabber 8 ай бұрын
Best tip. Put your bike in an autoclave. Tyres will slide on. #Sorted
@B_COOPER
@B_COOPER 8 ай бұрын
Josh, whoever is editing your videos is a master. The contrast of all the colors look great and the quality is top notch
@SILCAVelo
@SILCAVelo 8 ай бұрын
Thanks so much! That's Phil and he's really been upping our game here lately, thanks for noticing!
@Lacking_something
@Lacking_something 8 ай бұрын
05:11 I'm middle aged, and I've been installing bike tyres/tubes for 35 years. I bought my first road bike 4 years back, and thought the wheels/levers/tyres were defective as impossible to install tyres. Eventually discovered the new fangled centre channel which very few people seemed aware of! Once I used that I could almost do without tyre levers. My old fashioned knowledge definitely needed updating!
@stuartdryer1352
@stuartdryer1352 8 ай бұрын
Your pressure calculator really helped me, and I'm just an average guy. Interestingly, I like them about 2 psi less than the calculator tells me. Now I know why. By the way, my Pirelli P Zero Road 28 mm measure about 30 mm on my wheels with 21 mm inner width using TPU tubes. Part of the reason I switched from Contis is the Pirellis are so much easier to mount. I can always do it with my bare hands. And they never get those fibers coming out of the sidewalls like Contis.
@countspokeula539
@countspokeula539 8 ай бұрын
2 psi isn't really an accuracy you can gauge with any bike pump, if you're within 5 you're fine.
@stuartdryer1352
@stuartdryer1352 8 ай бұрын
@countspokeula539 You raise a great point, but I always check with a digital gauge. But who knows how accurate it is?
@richardggeorge
@richardggeorge 8 ай бұрын
@@stuartdryer1352 I know, it amazes me that pumps don't quote an % accuracy like so many other things these days
@aubertcordon8606
@aubertcordon8606 8 күн бұрын
I love it when the know it alls approach and expert and they try to give them advice on something they just learned or read about. I don't know how you don't blow up on people telling you that your pressure calc is wrong.😆
@888jhs
@888jhs 8 ай бұрын
I don’t sweat much on my trainer, but just in case, I use a slightly cracked carbon wheel on the trainer so don’t need to worry about damage (in my case the trainer bike is only used on the trainer). So if you have an old wheel and use your road bike on the trainer, take a minute and swap out your good road wheel for an old one and then no worries.
@timwong3532
@timwong3532 8 ай бұрын
Great list, but the most common mistsake that I'm still guilty of is not checking my sealant often enough!
@SILCAVelo
@SILCAVelo 8 ай бұрын
Definitely working on a sealant related video on it's own.. please let us know any other tips or issues you'd like to see covered!
@rayF4rio
@rayF4rio 8 ай бұрын
Sealant compatibility....mixing sealants vs cleaning out all the previous sealant. Or mixing when you run out of one kind.
@bryanlittle494
@bryanlittle494 8 ай бұрын
Love to see a video on cleaning out old sealant! Is there a best method or product?
@shirtlessGraveler305
@shirtlessGraveler305 8 ай бұрын
@@SILCAVelo why valves get clogged up so easily give us some tips or advice and get so frustrated getting fucked up I do my best to mitigate that
@grahambleach
@grahambleach 8 ай бұрын
@@SILCAVelomethods of checking sealant levels without disturbing a nicely seated tyre bead?
@Jarek.
@Jarek. 8 ай бұрын
Well done! I though it will be just a marketing BS but turned out it was a VERY informative. Many thanks 👍
@paulwixman8151
@paulwixman8151 8 ай бұрын
Hey Josh, Pearls of wisdom....As a race mechanic, I can echo many of the scenarios you've described on this vid. In the end, an ounce of prevention....... Cheers Mate, Pjw
@EdwardTBurke-pv3qr
@EdwardTBurke-pv3qr 8 ай бұрын
Thanks for the good advice of putting the valve stem at 11 or 1 o’clock when mounting tubeless tires. My experience goes all the way back to mounting wire bead clinchers in the late 1960’s when I was a teenager and riding sew-ups for three decades as an amateur racer. Now, it tubeless on all my bikes. I had been starting to mount the bead of the tubeless tire at the valve stem itself, then working all the way around to the opposite side to get the bead over the rim. A real struggle even with your Silca tire irons and high quality aluminum rims. Now, I will do your method instead. Learn something new every day. Thanks !!!
@doughorner5730
@doughorner5730 8 ай бұрын
I always drape towels over my handlebar and top tube when riding on the trainer. I'm surprised at how few people seem to do this, I spend a lot of hours on the trainer in the winter and my bike stays pristine. Thanks for all the good tips Josh!
@uncleronny6748
@uncleronny6748 8 ай бұрын
Yeah, back in the stoneage somebody even made one called a Sweatband or something dopey like that. Was it Yakima?
@kellrockets101
@kellrockets101 8 ай бұрын
Yup...I've always done this same thing. It helps a ton with any salt corrosion building up
@larryt.atcycleitalia5786
@larryt.atcycleitalia5786 8 ай бұрын
But you're not very "aero" with towels draped over your bike!!! :-) I was shocked at some of the corroded disasters people would bring in back when I was in bike retail!!! WTF? Brake squeal? The pro peloton seems plagued by this - what are all those pro mechanics doing wrong?
@doughorner5730
@doughorner5730 8 ай бұрын
Yes I'm leaking mega watts but it's a worthy sacrifice 🙃@@larryt.atcycleitalia5786
@jramirezar
@jramirezar 8 ай бұрын
Great advice not using tire levers, I never use them, even on road tires, thanks to the channel in the rim. I think when people say a tire is very difficult to install, it's because the rim, not the tire... thanks for your advices
@Justmarcusdave
@Justmarcusdave 7 ай бұрын
can't wait for your video of fitting a gravelking to a Mavic allroad with a vittoria liner!
@clarkcooper2920
@clarkcooper2920 8 ай бұрын
In the section in which you discuss inspection of the wheel, you focus on the spoke nipples and the hub, especially where the spoke attaches to the hub. In addition, it is critically important to inspect the rims for cracks, both radial cracks emanating from the spoke holes and circumferential cracks in the rim sidewall, both resulting from cyclic stress of the rolling wheel, through the spoke to the rim. These cracks can propagate and lead to catastrophic wheel failure.
@PeterPutz82
@PeterPutz82 8 ай бұрын
Great video, I did a bunch of tralling various pressures and found a nice balanced pressure for my setup then found the Silca calculator and it came up with the same number, good to get confirmation 👍
@fruissy
@fruissy 8 ай бұрын
Another part that might break by sweat is the handlebar. Some people sweat a lot from the hands or the sweat from the face falls down on the bar tape and the accumulation of salts in the bar tape corrod the handlebar. Signs that the sweat of the user is corrosive is sometimes seen by the coating finish of the brakes levers or name plate of the shifters are worn down by the corrosion of the sweat 💦.
@SILCAVelo
@SILCAVelo 8 ай бұрын
Thanks @fruissy, we cover this a bit (along with some amazing viewer images) in this video: kzbin.info/www/bejne/nnSuYWCXab92prcsi=BY-Jq2UaB40X_NPv
@aaronedgeart
@aaronedgeart 8 ай бұрын
Super helpful, as always!
@thatguy9051
@thatguy9051 8 ай бұрын
Love your Sealant, I"ve tried them ALL.......will use nothing but SILCA in the future!!
@chrisridesbicycles
@chrisridesbicycles 8 ай бұрын
I installed tubeless road tires with foam inserts yesterday and it was a big mess and the only way I can think of getting them off again involves explosives. Can you cover inserts in the next video, especially in combination with the Silca sealant that does not go through the valve. My tip on installing tubeless tires is the Crank Brothers Speedier lever which hooks over the bead. Its main function is stopping the bead of coming off again.
@SILCAVelo
@SILCAVelo 8 ай бұрын
Just filmed a video discussing this a little bit, should come out this week.. but yes, they are a total nightmare. The key is to get about 90 degrees of bead unseated.. not removed, but just pushed inward far enough that it's no longer sitting on the bead shelf.. then use your fingers to sort of massage the insert radially outward into the tire and once it moves you can now push that bit of bead down into the channel.. the trick is to then work your way around the wheel doing this with both hands while not letting the insert push back inward as it will displace the bead if it does this.. it's a real skill and I've done hundreds of these and still find it completely madenning. For WT teams at Roubaix, not gonna lie, we just cut through the tire and disembowel the insert.. such a waste, but when you have 40-60 wheels to do and the tires were free.. that's what happens!
@peterwillson1355
@peterwillson1355 3 ай бұрын
Your pressure calculator tells me exactly what the manufacturers [ eg Michelin] were telling me 20 years ago, for my 23s....
@mlee6050
@mlee6050 7 ай бұрын
I never used spoke prep when build my wheels but never had any corrosion on them yet
@Desmo500
@Desmo500 8 ай бұрын
1. Tire Pressure Optimisation, tick.. I am still not getting it right, but I try... big problem is loss of pressure over time, ie days...so check every day before riding... 2. Tire install / Removal. tick. I learned to use the groove a few years ago, what a difference. 3.Trainers and Corrosion. tick. Consider general riding too as sweat gets into head stems etc. I avoid the problem by not using a trainer. 4. Disc rotors. tick. do not touch. I use an auto brake cleaner when I clean the bike after it has been cleaned. I use auto cleaning shampoo, then wax the frame and use an armour all product on the rubber and seat et al, then I brake clean. 5. Inspection. tick. and the bike itself. every time I take the chain off for a warm wax bath. I check that all is tight, including chains / rings, seat and seatpost, cassette, spokes derailleurs and levers. all good advice. tick.
@mrwhiteshorts
@mrwhiteshorts 6 ай бұрын
Mr Poertner, Two things we now know about tyres (and wheels), wider is better, and the 105% rule. So which do we do? Do we prioritise fitting the widest possible tyre to fit the bike end-of? or do we fit 23s because our wheels are 10-15 years old? Cheers. mark
@rickdoehler502
@rickdoehler502 4 ай бұрын
for corrosion during training. Get a protective cover. Several companies make them and maybe a couple hundred dollars less than the riser contraption.
@CatManDoSocial
@CatManDoSocial 8 ай бұрын
Great stuff, Josh. Thanks!
@infovidasupps8640
@infovidasupps8640 8 ай бұрын
Great Contant thank you so much Josh
@RayRoetman
@RayRoetman 8 ай бұрын
So how does one get a tire into the channel when using a Vittoria Air Liner (or another brand)?
@timpurcell2717
@timpurcell2717 8 ай бұрын
Great job Josh! Thanx.
@KMS2468
@KMS2468 8 ай бұрын
Thanks for your tips and your great products. Would it be possible to build a calculator to determine the optimal tire width considering the internal/external rim width and rim height ?
@M3GRSD
@M3GRSD 8 ай бұрын
I ran the highest pressure in the past because lower, 80-90 PSI, I kept getting pinch flats. Better tubeless tires and nicer roads later, I'm finally able to let my hair down run 60 PSI on my 25mm road bike.
@josephorellana350
@josephorellana350 7 ай бұрын
Great video! Wiping is not cleaning!! 😅
@dustyhoods
@dustyhoods 8 ай бұрын
I love these tips! Keep on going!
@mobilemiall
@mobilemiall 7 ай бұрын
It would be really cool to see an option in the calculator to estimate for recumbent trikes (3-wheel distribution vs. 2) And just think of the wide variety of world class athletes you will have to draw from!
@strandedpaki
@strandedpaki 8 ай бұрын
Is there any feedback from anyone on why the Silca tire pressure tool recommendations are so different from the SRAM one? A little variation is expected but for my road bike (28mm tires), the SRAM tool recommends 65 psi back and 61 front. The Silca tool recommends 78 back and 76 front. For reference, I'm around 155 pounds, the bike plus gear add up to around 20-21 pounds
@SILCAVelo
@SILCAVelo 8 ай бұрын
So the SRAM calculator works to charts created in the 1970's by a guy named Frank Berto who determined '15% drop' to be the ideal loaded tire deformation. They then use those calculations with a filter applied that bend the values down as they approach 72psi. Our calculator is based on thousands of field testing data points with real athletes on real surfaces, where we use Chung/Virtual Elevation testing to determine what pressure provides optimal Crr.. our calculator fits curves to all of these data points to allow for interpolation in between them, and we do not modify the calculations at all for any rim or tire pressure limitations which is why we say that if the calculator tells you something too high, then you need larger tires. Also, be sure to measure the tires.. all other calculators sort of guess at actual width from the sidewall marking and rim inner bead width, but can be off in terms of actual measured width by 3-5mm.
@strandedpaki
@strandedpaki 8 ай бұрын
@@SILCAVelo Thanks for the detailed answer
@hyperbikie
@hyperbikie 8 ай бұрын
Thanks for following up on the disc brake question; I agree that if anything, high temp metal anti-seize without anything else in it that corrodes aluminum is probably the thing to use on CenterLock lockring. I guess the question is whether it's better than dry; risk of contamination vs risk of seizing. Nickel would obviously be fine but would the high temp grease of the Silca Anti-Seize withstand disc rotor temperatures of however many 200+ degrees? Withstand = stay viscous enough to not spray out and contaminate.
@SILCAVelo
@SILCAVelo 8 ай бұрын
SILCA anti-seize is considered non-migrating inside of jet turbines (1500 degres F is the listed burnoff of the synthetic carrier), so at our low rotational velocities and temperatures you will be fine ;-)
@jamescurrie1285
@jamescurrie1285 4 ай бұрын
Thanks Excellent teach in 🏴󠁧󠁢󠁳󠁣󠁴󠁿
@mrlaw711
@mrlaw711 8 ай бұрын
Good tips. My questions is: What of the online providers (Bikesonline, bikesdirect, jenson, Canyon,,, or any others) will provide me a bike delivered that is both tubeless ready, and I just have to fill the tires? Some DO NOT tell you you have to buy a can of stuff, rim tape, and valves.
@boc-tonysyklist2145
@boc-tonysyklist2145 5 ай бұрын
08:00: Have one of those, but I´m not very satisfied with it. I keeps slipping off the rim.
@RobertKnight001
@RobertKnight001 8 ай бұрын
Great video. Thanks for the tips. :)
@AR-lz2br
@AR-lz2br 8 ай бұрын
I have a wheel setup of carbon tubeless ready rims, continental 5000 clincher tires and TPU inner tubes. I never need levers to mount or dismount the tires, I use my hands to stretch the tire beginning from the valve position at the top going around down to the bottom of the rim, obviously, always using the center of the rim bead as my ally.
@korsveien
@korsveien 8 ай бұрын
The ease of installing really differs from wheel to wheel and what tire you put on them. My Mavic Cosmic wheel set is a nightmare with Conties, but easy with some other brands.
@micksnyder7860
@micksnyder7860 8 ай бұрын
In response to trainer riding - use a bigger fan, or 2 or 3! A big enough fan evaporates the vast majority of sweat before it drips.
@nrscotty6946
@nrscotty6946 8 ай бұрын
Excellent stuff as always. Thanks! BUT when installing a tube in a road (or narrow gravel) tire due to HUGE gash, and there's tubeless rim tape on an already not-too-deep center channel (Zipp?) rim, any other thoughts? The tube typically does NOT want to stay up in the tire where it belongs, and levers exacerbate the tube trying to escape, and then pop. May have to start packing one of those 'tire pliers' shown in the vid. Cheers!
@SILCAVelo
@SILCAVelo 8 ай бұрын
That is such a challenging situation! Yes, the key is to get just the tiniest amount of air into the tube to give it shape to avoid pinching but not enough that it has really any outward force against the tire.. ahhh!! So difficult!
@RobWater
@RobWater 8 ай бұрын
What to do when the sidewall says minimum 1.8 bar and the tire caldulator says 1.2 bar. Schwalbe R.ron 29x2.25
@nicholaswhittlesey724
@nicholaswhittlesey724 8 ай бұрын
Josh re: the abrasion between carbon rims and tire sidewalls, do you think that the wearing is more related to bits of clay/silt getting trapped between the two (rather than the carbon rim being abrasive in and of itself)?
@SILCAVelo
@SILCAVelo 8 ай бұрын
It's likely a combination of both, but mostly the carbon.. if it were grit and dirt in the interface, we'd see it on aluminum rims as well, but it's almost unheard of in that application. However, I think that grit in that interface will wear away the epoxy more easily than the carbon, and the carbon left exposed will be fiber ends, making a sort of micro saw blade. I personally hit all my rims with a white scotch-brite pad on this surface when new to try polish it as smooth as possible, but the real solution lies with the tire companies putting a protective material in this area, which most all of them are now doing.
@ellipticalsoul
@ellipticalsoul 8 ай бұрын
9:46 Galvanic Nightmare would be a good band name
@DanaBlack
@DanaBlack 8 ай бұрын
Also love 32 GP5000s on my 3T Discus 45|40! However mine only typically measure 35.5.
@SILCAVelo
@SILCAVelo 8 ай бұрын
You must have the newer GP5000 TS which are slightly narrower.. I still have the original GP5000TL (pre-pandemic!) which were sized based on 17mm bead width rims, the newer Conti's are sized based on 19mm internal.. this is part of why we have to use measured width as it all just gets SO comlicated!!
@ychad77
@ychad77 8 ай бұрын
How do you think about the one-piece carbon fiber Syncros Capital SL wheel, seems like it could get rid of some problems related with spokes.
@lethbridgecarboot5388
@lethbridgecarboot5388 7 ай бұрын
Hey Josh - sorry if I missed it. Other than an overall miss-match of tire and rim size or going too low on pressure, is there any issue with running your calculated tire pressures below the pressure range on the sidewall? My Perrelli Cinturato’s seem to suggest some pretty high pressures. Thanks for all the great content!
@lethbridgecarboot5388
@lethbridgecarboot5388 7 ай бұрын
To clarify - I meant running pressures below the recommended minimum pressure.
@timtaylor9590
@timtaylor9590 8 ай бұрын
i damaged a tire with a lever, the main factor that makes a tight fitting tire hard to get on is the grippiness. so now i use a lil bit of power and its a breeze, vs using over 100 percent of my strength and focus with a lever, also punched my self in the face when pulling the lever towards me, i use to train one arm pull ups so yea that hurt.
@davec5615
@davec5615 8 ай бұрын
Thank you for the TP calculator! One point, if running inserts, subtract 3psi?
@SILCAVelo
@SILCAVelo 8 ай бұрын
Inserts don't change optimal pressures in terms of the Crr, but they allow you to safely lower the pressure with less risk if you are seeking comfort
@davec5615
@davec5615 8 ай бұрын
@@SILCAVelo Thanks for the reply! In my case, yes, seeking comfort!
@MarrafaCycling
@MarrafaCycling 8 ай бұрын
Top information 👌 Thanks
@chrisbaum998
@chrisbaum998 8 ай бұрын
Question: How do inserts affect the air pressure you should run on your tires? Have you looked at what inserts are better than others for gravel bikes and mtb bikes? Thanks
@SILCAVelo
@SILCAVelo 8 ай бұрын
They will not affect your pressure, but the key is to get them the right size for your application. We like the Vittoria ones as they are closed cell and are compressed down when under pressure so that they are not contacting the sidewall of the tire, and then they expand rapidly if you flat.
@chrisbaum998
@chrisbaum998 8 ай бұрын
Thanks for an quick response!! @@SILCAVelo
@davidide1525
@davidide1525 8 ай бұрын
Great tips ! A lot of us that ride outside in cold weather, ( this would apply to people washing indoor training bikes outside) and don’t have access to a water hose. Any thoughts on a form of 1-2 gallon water pressure tank to use outside ? I would think the drive train cleaner sprayed on and some soapy water with a brush then spray clean would work . At the moment I use a bucket of hot clean rinse water and a bucket of soapy water with fleece lined rubber gloves .
@grahambleach
@grahambleach 8 ай бұрын
At CX events in the UK quite a few are using cordless electric pressure washers eg. Worx Headshot. That particular one requires a separate water container and people use aqua roll or other camping water carriers
@SILCAVelo
@SILCAVelo 8 ай бұрын
Bucket method works well, though I get what a pain it can be filling multiple buckets, but that's probably safest. There are small pressure washers that feed from buckets, but they introduce some risk and you still have to fill the buckets! Some people I know will do it in a shower which also works but does bring it's own issues!! I'd say keep doing what you're doing, also be sure to dry the bike, we will cover this in a future video, but a nice microfiber wipe to dry really does help to remove any residual dirts/oils/debris and if you have hard water, will also reduce any potential damage to calcium or lime buildup.
@davidide1525
@davidide1525 8 ай бұрын
@@SILCAVelo yes and I have a compressor , so I blow it dry , especially around the bearings and drivetrain.
@ToniBoa
@ToniBoa 5 ай бұрын
29mm inner width rim with 32mm GP 5000's ? Isn't that out of the ETRTO recomendations? Maybe there is something I'm missing...
@SILCAVelo
@SILCAVelo 5 ай бұрын
Technically yes, but it works extremely well and tests very well in blowoff, you can learn more here: www.slowtwitch.com/Products/Things_that_Roll/Race_Wheels/_Dan_Josh_A_Hookless_Discussion_8710.html
@Lacking_something
@Lacking_something 8 ай бұрын
11:40 or wrap an old towel over/around your wheel, fix with clothes pegs. Have another towel over handlebars.
@jeffer9499
@jeffer9499 3 ай бұрын
The "groove in the rim is called a drop center in the motorcycle and car world. Its the only way tires go on.
@timtaylor9590
@timtaylor9590 8 ай бұрын
whoa i never knew measuring actual tire width was necessary. i always run 90-95psi but now its putting me under 80psi.
@frankie2994
@frankie2994 8 ай бұрын
Hi there great tips, I was wondering what your thoughts are on the Tyre Glider? Since discovering it installing gp5000's is no longer a nightmare... however I do wonder if they can damage the rim
@SILCAVelo
@SILCAVelo 8 ай бұрын
I've not used the tire glider specifically, but it's install technique is very reminiscent of the CrankBros lever action..which works well, but you have to be careful if your carbon rims have decals as before you know it, you've run it around the rim and shredded them.
@frankie2994
@frankie2994 8 ай бұрын
that's actually exactly what happened 😂
@markmoreno7295
@markmoreno7295 8 ай бұрын
I use Filmore valves. To check for sealant every 4 months or so I need to visually inspect. Often it is low or gone especially if I have needed to add air regularly. What is the least messy way to check for sealant?
@SILCAVelo
@SILCAVelo 8 ай бұрын
Shake the wheel and listen.. it should sound sloshy like water in there. As soon as it starts to sound thicker than water, you need to add more, and if it's silent, you need to open it up and inspect.
@s.j.5850
@s.j.5850 8 ай бұрын
If you haven't done so already can you do a video that includes using tubes inside tubeless wheels/tires. I have had tire sealant etch into my wheels after not removing it in a timely manner. My bike came with tubeless ready wheels (with a tube inside), so aside from the weight issue is there any arguments against using that set up?
@SILCAVelo
@SILCAVelo 8 ай бұрын
The only real downside of tubes in tubeless setups is that it's heavier and has higher rolling resistance. Tubeless tires already contain extra rubber making them a bit heavier and potentially slower than tires made for tubes.. so by keeping a tube in there, you are getting the worst of both worlds. As for your etching of your wheels, that should not happen with any of the modern ammonia free sealants and a good TPP rim tape.
@s.j.5850
@s.j.5850 8 ай бұрын
The weight does not concern me since I am not racing. The hassle of sealant does. Popping in a tube for me is more convenient than the mess of tire sealant. Since I already have tubeless ready wheels I can always switch back if need be.@@SILCAVelo
@NoNamerMr
@NoNamerMr 7 ай бұрын
What do I do, if the calculator tells me lower pressures than allowed by the tires? So for me, I'm running 700x45 MAXXIS Rambler on my gravel bike (hookles, tubeless) and the calculator tells me to use 2.1 bar while the allowed minimum on the tire says 2.5 bar. Does it mean, I should run smaller tires? Like 40s?
@SILCAVelo
@SILCAVelo 7 ай бұрын
I would ask the tire manufacturer why they list a minimum pressure. Some tires have a minimum pressure based on what the manufacturer fears could allow the tire to burp or de-bead under side load (which would be a safety issue), and others are just giving guidance to avoid a potential pinch flat.
@NoNamerMr
@NoNamerMr 7 ай бұрын
@@SILCAVelo thank you very much!
@mpvsystems9302
@mpvsystems9302 8 ай бұрын
I wish I could use your pressure calculator but it does not include a "Tyre Type" = Tubular. Could you please include it in the next version? Tubulars are "beadless" and have a full 360 degrees of casing. This amounts to 20 to 30 % more casing "width" for a given tyre diameter when compared to a clincher . In turn, this results in higher hoop stress for a given pressure, and this changes the optimal pressure...
@SILCAVelo
@SILCAVelo 8 ай бұрын
So we've tested this pretty extensively using both static and dynamic load/deflection testing (you can see some of it here: silca.cc/blogs/silca/part-2-tire-stiffness-wider-is-stiffer-harsher) and found that for a given tire measured diameter, the radial stiffness will be equivalent regardless of tire construction.. in fact, for the first probably 2-3 years of data that our calculator is based on, all of the cobble and much of the road racing data comes from tubulars.. in fact, if you know the rider weight at the time and measured tire width, you can at least 4 Roubaix winning pressures (on tubulars) from the calculator.. so calculate away!
@mpvsystems9302
@mpvsystems9302 8 ай бұрын
The blog post does not appear to include tubular tyres? @@SILCAVelo
@ScottPatton44
@ScottPatton44 8 ай бұрын
Is that Greg’s bike? Or replica? Either way … bad ass!
@SILCAVelo
@SILCAVelo 8 ай бұрын
It is a TeamZ bike from 1990, but it was not Greg's. It has the proper team decals from that season which are different from the production models, but no rider name on the top tube. It's great fun to ride, but 21mm max tire width, shifting is terrible, and those Delta brakes are beautiful but really don't stop worth a darn.. not a bike to ride in the city!!
@888jhs
@888jhs 8 ай бұрын
Hi Josh. I have an off topic question about Zipp which you mentioned several times on a recent GCN video. I just unpacked my Zipp 950 disc from about 25 years ago. I discovered that my 10-speed cassette still fits and it seems to spin normally. It seems to be in great condition but not used for about 15 years and only used maybe 25 times ever. Question: would you still use it for a 70.3 race or is it too old even though it looks fine? What about my same vintage Zipp 440 front wheel in similar good condition?
@SILCAVelo
@SILCAVelo 8 ай бұрын
Old carbon wheels don't degrade from sitting so you should be fine. The bearing grease might not be in such good shape, but a clean-up and some lube and you should be good to go!
@HarishChouhan
@HarishChouhan 8 ай бұрын
Just scratched my rim's using Silca tire levers when removing a tire to replace the Silca Inner tube :( They are good quality, but I now going back to using cheap plastic ones.
@SILCAVelo
@SILCAVelo 8 ай бұрын
I'm surprised to hear that for removing the tire.. our plastic inner piece is similar plastic to what other levers are made from but is actually softer since it has the aluminum spine? Where you peeling the bead off, or running the lever around the rim? Honestly never heard of this before so curious! Thanks
@HarishChouhan
@HarishChouhan 8 ай бұрын
@@SILCAVelo I was trying to remove the tire. One lever was on and while I used the other lever to peel of the tire it scratched the edge. I might have done something wrong, but never ran into this when using the cheap plastic levers. They don't last very long though.
@kevindean9613
@kevindean9613 8 ай бұрын
Interestingly the app comes up with a pressure way below other apps , I use 29 x 2.35 on bikepacking.
@SILCAVelo
@SILCAVelo 8 ай бұрын
As our calculator is based on thousands of actual field test results of optimal Crr for given weight/tire/surface it does get a bit cloudy at the extremes as we just have very little data.. Also, it's mostly using pro road/CX/gravel inputs with maybe 10% mtb cross-country. So our data skew toward lighter riders and bikes as a result. So with a heavy bikepacking setup and tires that big, you are just sort of out of the scope of the calculator.. though I'd be interested to see how it works for you, have you tried our recommendation? If you could give me some data points that do work for you, we could drop that into the model and it would actually start to improve data quality out there.
@kevindean9613
@kevindean9613 8 ай бұрын
@@SILCAVelo based on a total weight of 280lbs , grade 3 gravel , & 29 x 2.35 tubeless tyres the app suggests 17 psi ,I actually settle for 26 to 28 psi .I will try 17psi on a regular route if you like & report back .
@CatDaddySteve
@CatDaddySteve 3 ай бұрын
DUCATI: " to hell with comfort, winners can be comfortable after the race"
@John-et9nx
@John-et9nx 8 ай бұрын
Do you measure your tire width when it’s inflated or out of the box?
@SILCAVelo
@SILCAVelo 8 ай бұрын
Measure when inflated
@chenevert102692
@chenevert102692 6 ай бұрын
how much air do you put in before you measure how much to put in ?@@SILCAVelo
@maxaposteriori
@maxaposteriori 8 ай бұрын
Using the Silca tire pressure calculator I find it impossible to satisfy both the rule of 105% and the ERTRO guidelines (this is on 30mm external rims, so relatively wide & I’m under 75kg). On a moderate to fast group ride, should I give up on optimal pressure or on the rule of 105%?
@korsveien
@korsveien 8 ай бұрын
On a group ride aero only matters when you’re on the front. So aim for optimal pressure . Even when you’re riding in front another person on your back wheel will also reduce the drag on you. So aerodynamic benefits only really matter when you ride alone. Doing yoga or stretching so you can ride comfortably with your body lower probably matters more than any aerodynamic gear you can buy. But that’s the boring answer. Buy the things you want and enjoy life. 😊 I waited two years to buy my Canyon before they came with a color I really wanted - racing green.
@SILCAVelo
@SILCAVelo 8 ай бұрын
Many modern wheels have made it nearly impossible to hit the rule of 105 and hookless rims make it actually impossible unless you weigh 100lbs. I'd shoot for as close to 105 as you can get, in many cases this will be 100% or equal rim and tire width, and then optimize your pressures. If you have money to burn check out my favorite setup, the 3T Discuss 45/40 with hooked 29mm internal bead width, with 32mm GP5000's that actually measure out at 35-36mm when inflated on that rim.. looks like a motoGP wheel at first, but the aero is phenomenal as is comfort and road feel.. I run mine at ~38-40psi and it's amazing.
@Frostbiker
@Frostbiker 7 ай бұрын
2:05 "Honey, I am not fat; my love handles produce higher histeresis"
@JanGoh-jb5ge
@JanGoh-jb5ge 8 ай бұрын
Great video, but about halfway through the video got SO QUIET. And then when the midroll ad came in, it blasted me because I'd turned everything up. Even the outro music was louder.
@KenSmith-bv4si
@KenSmith-bv4si 8 ай бұрын
Hi Josh, I have a pair of Zipp 303 Firecrest wheels and this upcoming spring I want to replace the rim tape, now the inside rim width is 25mm. What size rim tape should I use?
@MrLahey-rw8ko
@MrLahey-rw8ko 8 ай бұрын
27 or 28 mm
@SILCAVelo
@SILCAVelo 8 ай бұрын
I'd ask Zipp.. it will depend if they are hooked or hookless, but they will know the exact number for your model.
@KenSmith-bv4si
@KenSmith-bv4si 8 ай бұрын
@@SILCAVelo My wheels are "Hookless"
@rendezvous_with
@rendezvous_with 8 ай бұрын
The key to preserving your trainer bike is fans and towels. If you're dripping on your bike, its because you aren't doing that. Way easier (and cheaper) than your recommendations.
@SILCAVelo
@SILCAVelo 8 ай бұрын
One thing to remember with fans is that they help to evaporate the water, but that leaves the salts in the sweat just that much more concentrated.. towels are super helpful, but if that super concentrated sweat is seeping through, then you will have issues.
@korsveien
@korsveien 8 ай бұрын
Wash your bike regularly also when it’s on the trainer. If it’s freezing outside wash it the shower.
@johnbravo7542
@johnbravo7542 8 ай бұрын
Brand new disc brakes need to be bedded in properly,the best way to do that is find a reasonable decent nothing to crazy,bring a water bottle with you that has only water in it,as you near the bottom of the decent,spray your brake pads with the water,this stops the pads from glazing over,repeat process a couple more times,and your done,it should also eliminate squealing of the brakes too. In the case you have contaminated your pads thoroughly clean your calipers,boil the pads in clean water for a few minutes,then find a very flat surface eg: glass sheet use 800/1000 grit wet and dry sand paper and rub the pads on the paper with even pressure and strokes,about 10 times,then clen the pads with brake cleaner then reinstall.
@willjones7132
@willjones7132 8 ай бұрын
The Silca pressure calculator works good for classic road, but larger tires like 55mm (measured with calipers) it recommends such low pressures the tires roll, bounce, and bottom out significantly with any riding more aggressive than recreational seated beach cruiser vibes. Sweat ruining the front hub?, seriously?, here's a genius thought, drape a towel on your bars and top tube LOL, you don't need more stuff! So much of the "advice" is ridiculous, for easily avoided "problems" that don't exist for people who have a brain.
@PappaMike-vc1qv
@PappaMike-vc1qv 3 ай бұрын
Your tire pressure calculator does not work for recumbents.
@inzana2
@inzana2 8 ай бұрын
I don't understand why people don't just buy a good cooling fan for trainer. With 70m3/min fan I don't drip any sweat on trainer, no towels needed.
@mutleyadamsracing2684
@mutleyadamsracing2684 8 ай бұрын
Your advice is null and void if you have Cush Core! Let em know!
@wasteddevelopment
@wasteddevelopment 8 ай бұрын
Anybody who sayd "you dont have to use tire levers to mount tires" has never touched a proper MTB tire.
@SILCAVelo
@SILCAVelo 8 ай бұрын
Please send us combinations that are terrible and we'll try them. Josh is a bit of an outlier having installied thousands and thousands of tires over the years, but in general, with the right technique, even with inserts it should be doable by hand and only in rare cases with the bead jack.
@Ingrimmsch91
@Ingrimmsch91 8 ай бұрын
Never ride a bike on the Turbo without Sweet Catcher !!!
@winters3
@winters3 8 ай бұрын
User a towel... Whats not getting in, you haven't to wash out 😊
@stephenjhughes64stephenjhu26
@stephenjhughes64stephenjhu26 8 ай бұрын
Only the people over 13 stone need 115psi in tyres which were 25c 10 years and so ago . Thin raci g snakes need 90 in 25c .. these days more people are riding bikes over 13 + stone .They should of sticked to Golf in 40s - 50s
@boc-tonysyklist2145
@boc-tonysyklist2145 5 ай бұрын
09:00 Towel. Problem solved.
@Local.hero.1983
@Local.hero.1983 7 ай бұрын
Grammar police in chat
@markifi
@markifi 8 ай бұрын
no doubt it's good info but i just can't hear it. please normalise, compress, limit your audio
@sempi8159
@sempi8159 8 ай бұрын
Tubeless is a fad... So much hassle for so litte benefit. Oh let me spend 2 hours and way more money to get tubeless instead of just buying a 10€ tube and spending 5 mins fixing the tire.... Its ridiculous that normal riders think this is needed or better...
@SILCAVelo
@SILCAVelo 8 ай бұрын
We're still a few years from it being ubiquitous in moderate to high end bikes, but when it works, it's really fantastic. Looking at the wheel and tire manufacturers, 100% of R&D is being spend on this tech, so it will absolutely be the future, but you can certainly always throw a tube in there.
@highcarbrider
@highcarbrider 8 ай бұрын
Every cyclist should be forced to watch this before being able to buy a bike 😂
@filipwalicki3304
@filipwalicki3304 8 ай бұрын
If you don't have a particularly humid environment and drip sweat all over the place - you are just doing it wrong. Buy a better fan, buy a second fan and stop making your own a new bikes life miserable.
@timking2822
@timking2822 8 ай бұрын
Not much here for mtb riders.
@larsoleruben
@larsoleruben 8 ай бұрын
So you destroyed the eu website, took away my loyalty points and now I’ll have to pay import duty! This will cost you all European business! What a bad way to treat loyal customers who has bought a lot of your stuff DISAPPOINTED!
@SILCAVelo
@SILCAVelo 8 ай бұрын
Lars, please check your email for one sent yesterday detailing the website work in progress in the EU. We are in process of merging the two sites, all loyalty points will be in place within 24 hours, and there will be no duties or taxes as all products will continue to ship from Rotterdam. As we ask in the email, please bear with us as we make these changes and updates which will ultimately improve site performance and speed, allow us to embed additional content, and ultimately will allow for local language translation and such.
@larsoleruben
@larsoleruben 7 ай бұрын
@@SILCAVelo yes and you still have not solved the problem with my loyalty points
@user-cx2bk6pm2f
@user-cx2bk6pm2f 8 ай бұрын
Josh, "biweekly" may be the worst word in the English language. It means BOTH "every two weeks" AND "twice per week". Whenever this word is uttered, nobody knows what it means... or one meaning is assumed and it's a 50/50 crap shoot. You are far too eloquent to use such imprecise language.
@redkeyspoke
@redkeyspoke 8 ай бұрын
'Fortnightly'
@cory1newton
@cory1newton 8 ай бұрын
I’ve always said “twice weekly” when talking about things I’d do twice a week like showering or sleeping indoors. I’ve mostly seen biweekly used in employment related conversations to mean pay every other week. What do you think his intent was when he said it? And do you think the majority of his audience got the gist of it? No worries, we’ve all been known to have spastic interactions with perfectly comprehensible speech from time to time.
@hectorkidds9840
@hectorkidds9840 8 ай бұрын
Next weekend is the other one, it can mean the weekend at the end of this week, or the one after that. Better to stick to dates (DD/MM/YY none of that is mixed up nonsense) and 24hr clock.
@slomo3937
@slomo3937 8 ай бұрын
Just do it weekly, and you’re good.
@MrSethsamson
@MrSethsamson 8 ай бұрын
Perhaps Josh could do a break down of the word? Any phd students on the subject matter care to chime in?
@AQBIKE
@AQBIKE 8 ай бұрын
Josh talks too much is Silca's biggest mistake.
@ProffessorSeen1
@ProffessorSeen1 8 ай бұрын
The biggest mistake you can make is putting Silca sealant in your tires.
@driventomadness117
@driventomadness117 8 ай бұрын
Oh yea let's just make accusations without any substantive points why.
@ProffessorSeen1
@ProffessorSeen1 8 ай бұрын
@@driventomadness117 you Silca simps are so easily triggered.
@lowlifescum
@lowlifescum 8 ай бұрын
I like your tyre pressure calculator - BUT tell me does internal rim width matter ? Because your calculator doesn’t seem to capture that … ??? OR DOES IT?
@SILCAVelo
@SILCAVelo 8 ай бұрын
Internal width doesn't matter if you are measuring your actual tire inflated width.. measuring the actual inflated tire accounts for the tire width tolerance, the rim bead width tolerance, and everything else.. otherwise you are just calculating based on guesses..
@terrellpickett7904
@terrellpickett7904 8 ай бұрын
You just blew my mind with the tire install tip. Most probably knew but I generally didn’t even consider where the tire was in the groove as I was installing a tire.
@stephenkohler3472
@stephenkohler3472 8 ай бұрын
Just realized my 47's are actually 50mm wide. So glad you guys did the pressure calculator! It's really helped me out
@waotribal8108
@waotribal8108 8 ай бұрын
Towel on the front wheel and headset dude! $2 solution. Don't over think!
@colinthemystic
@colinthemystic 8 ай бұрын
I’ve got a couple sets of wheels that are from the early days of Tubeless. Sometimes to seat my tires tubelessly, I have to mount the tire with a tube to seat the bead, then remove one side (and the tube), install the valve stem sans core, and use A LOT of pressure to re-seat the other bead. A bit of a dance, but it works!
@s.j.5850
@s.j.5850 8 ай бұрын
Even using the "blast" bicycle pumps don't always work because the air escapes before it can build up enough pressure to seat the bead of the tire. I am now resorting to using an inner tube inside my tubeless wheels since that's how the bike came originally. For me tubeless tire mounting & sealant is no longer worth the hassle. The weight penalty is insignificant in my opinion.
@SILCAVelo
@SILCAVelo 8 ай бұрын
Yes, early tubeless was built around a vision or true, sealant free, tubeless functionality, just like a car tire and OMG, the tire install and removal was crazy!! Kudos to you for sticking with it, when it worked, it was really good.. but most people bailed out of that tech very quickly which sadly set the whole tubeless transition back a few years..
@razorree
@razorree 5 ай бұрын
I think this calculator is OVERLY optymistic ... for example, MTB 29x2.4 tires (62mm), worst surface (gravel cat 4), 90kg system weight and the calc proposes 0.8 bar !!! it's not possible to take a turn with such pressure. 1.4-1.6 bar is realistic... and what about road tires? 29mm, high perf, good pavement - 5.3-5.4 bar (I think the calc was updated, before it was lower?) - This works, however I have a question, why tire manufactures suggest higher pressure? even minimum more like 6 bar (continental and pirelli for example)
@reid3737
@reid3737 8 ай бұрын
If you have significant sweat dripping on the trainer, it's insufficient cooling. I don't have a drop in z2 and higher zones still very minimal. You just need the appropriate fans and environment.
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