Top 5 Mistakes You'll Make When Going Tubeless | Mountain Bike Maintenance

Going tubeless can be a huge upgrade to your bike, greatly lowering the risk of punctures and allowing you to run lower pressures and achieve better handling! But successfully completing a tubeless set up quickly, successfully and with no mess is a rare occurrence. Here are some of the most common mistakes you'll make when attempting to get your wheels set up tubeless!
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We love tubeless here at GMBN! Having several bikes set up tubeless and keeping tyres fresh for maximum grip means that we know quite a lot of the tips and tricks to complete a set up without a hitch! So here are the mistakes that you'll make and how you should fix them.
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Leave us a comment below!

[@gmbn]

What are your favourite tubeless hacks! let us know in the comments!

[@truckstreestoys]

spray paint the inside of non-tubeless tires to seal the casing

[@perrybrown7650]

When doing a new tubeless setup with new tape, I like to install the tire with a tube and inflate to press the tape onto the rim. The 40-50 psi in the tube presses the tape onto the rim much more consistently than you could ever do with your fingers. Also, with new tires, I find that installing the tire with a tube helps to stretch and round out the tire. At a minimum with new tires, I find that it saves a lot of frustration if they are unfolded, rounded out, and allowed to sit for a day or so before trying to mount them.

[@paddydavison6969]

Global Mountain Bike Network get a Schrader to presta adapter use the local compressor at the petrol station. Simple as that.

[@leqin]

Use Orange Sealent - it sets like a balloon inside your tyres and later, when you come to remove them, you just peal the sealent away rather than spend ages trying to rub and scrape sealent like Stans or Continental off the insideof your tyres.

[@piczucha]

Using home depot pressure sprayer :) just $10, but works like a charm every time.

[@villeqq4789]

You forgot the most important thing. Check you install the tire the right way because it's a pain in the ass to flip it.

[@rockymountboy]

What do you mean? Are your tires directional?

[@erik.reinert]

@@rockymountboy yes, mtb tires are (usually) directional

[@mattwood852]

I just did this.... It was infuriating when I realised i put it on backwards when i mounted the wheel.... Had to clean up all the sealant I had just put in. Brutal.

[@rockymountboy]

@ewanok Nope. But maybe mine aren't the expensive good kind.

[@r.davies2702]

I hear you man.

[@mentaldan666]

Apart from the dirt shed show on fridays, I look forward to maintenance mondays the best. Doddy is a natural at explaining and teaching stuff.

[@jimbest2448]

I totally agree that Doddy is a great tech guy.

[@ZeroSeriesMMX]

He wasn't known as Mr. MTB for nothing. :)

[@jamesfarquharson6265]

I’ve learned from bitter experience that sometimes even using a compressor & high volume of air doesn’t get the blasted tyre to seat, especially when the tyre is brand new. If this happens you can insert a tube, inflate to a good pressure & let it sit for a few hours. Then take out the tube, put in your valve & try seat the tubeless tyre again. Works every time

[@Scottspark910]

Another trick that works for me is using a tube before to easily bed the tyre in. Once done, unbed only one side of the tyre and gently remove the tube from the rim making sure the other side of the tyre/rim remains sealed. Then add the sealant and it usually makes that "victorious" pop sound at first try and you are ready to go.

[@zacjohnson452]

Guillermo Yañez what about the valve cores? Don’t you need to put those in?

[@rramirez19]

And don't forget Tyres are often Directional!!

[@clintgolub1751]

Oh man is this sooo easy to mess up

[@insanedown]

Doddy you forgot to align the stickers on tire/rim, it's more pro!

[@Phahel7]

I literally just put a new tyre on the rim, and nearly cried when I had finished and realised I didn't think of aligning the tyre and wheel writing :'( haha

[@beepstar899]

You missed getting the direction roll wrong... did it on my first attempt and had to do it all again :/

[@dhananjaybhardwaj7639]

Doddy is so good with all the technical stuff! Extremely informative! :)

[@jegstyrer]

The mechanic vids have been really great, well informed and some times you get to think of things you had not been paying attention too. Good work hiring Doddy. 🤙🏼

[@secretsquirrel4137]

Good job Doddy - great tips n tricks! Not gone tubeless yet but will have a go after watching this. Thanks GMBN!

[@pbillings808]

Mistakes: Installing a directional tire backwards Misaligning the logo and stem -- a more obvious reference never hurts

[@SuperUltraKel]

I never align the logo with the stem ...... I've gotten in the habit of aligning the pressure ratings with the valve stem and it makes it far easier to find the pressure range on the casing. its just a habit now despite the fact that with my current MTB setup, my tires are tubeless and FAR below what the tires are rated for. Road bike seems a bit more applicable but I still do it to all the tires I mount

[@captainLoknar]

whats the point of aligning the logo and stem

[@pbillings808]

​@@captainLoknar For me, it makes it easier/faster to find the stem when adding air. (I check this before every ride.) FWIW, I wouldn't redo it if I forgot to do this.

[@trek520rider2]

If you've got tires with wear indicators eg Conti road tires, alingn the wear indicator holes with the stem.

[@rravimahawal8719]

Doddy I love the concern for the environment in each and every video of your's. And they are really informative....guess you must be getting to hear plenty of this... cheers :)

[@phoenix0761]

Doddy is a great addition to the channel. Knowledgeable and a a natural presenter. Chapeau Chaps!

[@jorgechavira7729]

I like this guy's videos, they are very useful, easy to understand and he shows every possible scenario if one is missing something

[@davidwhite3702]

Thanks for the concise video on the pitfalls Doddy , I may well give tubeless a try after that. 👍🏻

[@mostlikelywedoitservices6926]

You forgot to warn people. Some sealants I have heard say don't use co2. Cause sealant to chunk up. Other than that. Great informative video. Well done.

[@hristoezovski3634]

Conti Revo sealant is a nice example ;)

[@massoud999]

The best video on this subject I have seen. Thanks

[@jacobmarx8184]

+1 pro Point for lining up the tyre graphics with the valve. I always remember to do this AFTER I inflate the tyre, probably the only thing keeping me out of the EWS.

[@jamedonovan3555]

Quality video. Thanks Doddie.

[@adcashmo]

Great tips Doddy!!

[@gregobrien6912]

U know. I wasn't a big fan of Doddie at 1st but now he's one of my favourite presenters. Top man

[@shamoy1000]

First thing to remember with a tubeless tire is to carry a spare inner tube.

[@adamlynch9153]

chas sisom this for me just makes it not worth it. Like I’d rather fix a flat every thousand miles than mess with that nasty sealant.

[@nigellax454]

Well, enjoy your road bike...

[@AlpineTrails]

who does that? just carry a small repair kit.

[@orionfpv613]

So basically the same as a tubed setup carry a spare tube lol

[@shamoy1000]

@@orionfpv613 If you ride up and down the local trails walking your bike with a flat tire back to the car is not a problem. If you're riding off road cross country, always carry a repair kit and extra tube. My opinion / advice.

[@zyortech]

Excellent video. Very proper.

[@wordreet]

I'm definitely trying this on my Coyote Skid Row fat bike, even though I have neither tyres nor rims tubeless ready. The tires are kind of worn, but that's partly why I don't mind trying. Also, I do have an old compressor and eight years experience as a car and commercial tyre fitter. So this will be a fun experiment.

[@ElreyRayo]

Gracias from Texas 👍

[@TheCliff670]

A dry run.. why didn't I think of this??? Thanks for the great tip doddy👍👍

[@bbman85]

Two things I had to learn the hard way converting to tubeless: 1. Take the time to really slosh the sealant around well. Better your arms fall off from all that tyre shaking than being constantly frustrated by a small leak somewhere at the rim where the sealant usually doesn't get to... 2. Make sure the valve is screwed on TIGHT. Most locking nuts you can only tighten with your fingers, so do it until you can't move that ring any more. No matter how hard you think it's on already, if you're able to screw it in more, air IS escaping there...

[@jlh530i1]

the extra rim tape was a time saver, thanks!

[@pierh4724]

Great video !

[@nickdrogk1626]

Nice video man

[@johnreese3762]

Great info, thanks! I wish I would have seen this before I made a mess. 😖

[@ruisantos9208]

Brilliant video... 2021.

[@pauperismarti2226]

For those that dont have a valve core tool, you can use a spoke wrench 😉

[@flycrashrepairrepeat6225]

great tips, thanks.. just one thing though, the Continental Revo Sealant says to not use CO2 to inflate tyres on the bottle. Not sure if thats because of some chemical reaction or temperature issue. Dare say many have used CO2 and had no probs, just wondering why they put that on the bottle if it's not something to consider. cheers

[@alcaholic640]

going tubeless is great i wont go back to a tubeed tire.i initaly has issues inflating the tire if you have this problem make shure you try to wrap a string around the tire in the middle of the tred to push it tward the rim to get it to keep air it really helped me keep pressure to inflate the tire

[@jbalatutube]

Al caholic dude you saved my life. Got the tyre inflated to 40psi finally. Will check it in about an hour.

[@bluewker]

WOW! that's pretty innovative. Wrap a rope around the middle of the tread? I guess that helps the bead get into a better angle for seating?

[@harenthiran]

Amazing idea!

[@rollinrat4850]

Cargo straps work even better!!

[@PetterIvarsson]

Genious

[@charlieecho1452]

Instead of spending an additional $10 for the "sealant syringe" I used a $0.99 mustard squeeze bottle and a 10" piece of clear, scrap 1/4" ID tubing that can fit snugly over the valve stem. Place the tubing over the bottle spout and it makes for a nice clean installation of the sealant. I also marked the bottle at 2 oz and 4 oz to make the job even easier. FYI - you may NOT want to use a CO2 tire inflator as the expanding CO2 gas is so cold it can freeze the liquid sealant and make it into a goopy mess.

[@raulslorencis158]

Thanks!

[@VWsyncro87]

HI DODDY. I AM A BIG FAN OF YOUR TECH VIDEOS. I RECENTLY CONVERTED MY CUBE STEREO 140 HPC WITH NEWMEN A30 WHEELS TO TUBELESS IN COMBINATION WITH TIRENOODLES AND IT IS WORKING PERFECT. THE ONLY QUESTION THAT IS LEFT IS WHEN OR HOW DO I KNOW I NEED TO TOP UP OR CHANGE THE SEALANT IN THE TIRES?

[@pibblesnbits]

I used a regular bike pump, did no dry run, and just poured the sealant into the tire. Had no issues, and no spills. Good practice for when you're out on the trail with a gash in the sidewall that you may need to patch up.

[@mountainbiker44]

Great video

[@veryveryintense]

I've only just gone tubeless recently in the last couple of weeks after years of sticking with trusty inner tubes. So far gone really well but my main comment is that with Vittoria mezcal tyres and hope rims I haven't needed a special pump or co2 cartridges and have good seal and it retains air long term. I have done both tyres on my mountain bike this way and front on my gravel bike. I'm sure there are scenarios where you can't get away with it but I wish more people would say it's possible as this was a big barrier for me as those pumps cost a lot and I really didn't want a compressor.

[@stubeeson8037]

Orange seal is the one to use,Iv had glass in my tyre and it sealed in four turns of the wheel great stuff.Should have gone tubeless a long time ago.

[@TheQuikMix]

make note that some sealants will react with the thermal changes from a CO2 cartridge use. Many companies don't recommend it as it will reduce the lifespan of the sealant. fine for short term OTR fixes, but probably not best for home use.

[@Atomb]

M.King 2.4 on the front. Good man.

[@thelampire]

I have Mavic tubeless wheels and in the manual I was advised not to use CO2 when using the sealant. It is highly likely that the sealant won't work, when there is CO2 in the tires. I hope it was worth mentioning. Cheers!

[@leftfieldbikehacks1857]

I found first washing the inside of the tire with soapy water, then wipe with alcohol gets rid of any silicon from the manufacturing process. Helps the sealants stick to tire.

[@sarasachiko]

Thanks for the great info! What sort of maintenance needs to be done on tubeless tiers? I'm not sure what sealant was used on mine and wasn't sure if I need to redo the whole process or just add more sealant if its dried out.

[@0983bozo]

Just add some more sealant. I think they recommend every 6 months.

[@iosemait1]

great tips but one that is missing is how to store tubeless tyres with sealant in for long periods of time (e.g., 6 to 12 months). Should we pump air in them every now and then? Should we store them parallel or perpendicular to the floor? Should we turn them around every now and then? Cheers

[@zoranbregovic3752]

Cheap and really good tubeless pump/compressor is a fire extinguisher (2kg). :)

[@audieallen9734]

You blew me away with that stupid pump at the end! In one blast!

[@tommoritz6659]

Doddy - I'm planning go go tubeless on my 2004 Gary Fisher Hoo Koo E Koo. Bought this bike used about a year ago and have been riding/working on it since. This is my next upgrade. So, I was at the LBS looking at what options they had for tape, valves, and sealant. During my conversation with the tech he pointed out that the sealant manufacturers state the sealant has a useful life. What he couldn't tell me is do I just sweeten the sealant with another dose or would it be better to remove the tire and wipe down the inside of the tire and rim before recharging. Hope you can provide some good advice. Thanks, Tom

[@marc-antoniochalhoub3120]

Hey guys, i really love your channel. And i have a question: when we inflate our tyres with co2 cartiges is it good ghe let the co2 inside? I have heard that it wasent good

[@me1976ac]

If you have a garden pressure/weed sprayer you can successfully adapt it to dump a load of air into the tyre instantly, it worked for me, plenty of you tube videos on how to do this. If it doesn't work you can just put it back to how it was, it's cost you nothing but time

[@philw8909]

My cube attention has Schrader valves, do I need to get Schrader tubeless set (sure I've seen these), or do I need to get a presta setup (and will this be fine in a slightly larger hole originally designed for schrader)? GMBN, great work as always and fantastic channel. 🚵🚴

[@slimbeaux]

Now what we need is a edit on refreshing your tubeless. I think mine are about ready but get a bunch of conflicting info on when, where, and how.

[@alpine1609]

I went back to good old inner tubes, twice I had tubeless blow off and wouldn't reseat, one led to a ten mile hike a bike over the mountains in the lakes, seen more than enough lads dragging bikes back to carparks with fluid all over the place, puncture kit and one spare tube, sorted

[@granto6738]

Good video

[@AlpineTrails]

Good vid. Few things to add are: 1.pay attention and install the tyre in the correct direction. 2.If you're using CO2 cartridges, remember that next day you'll have a flat tyre due to CO2 having a higher permeability through rubber than air.

[@TheTT124564]

For the sealant could u used slime and then just get the proper valve core and rim tape?

[@ebigarella]

Sometimes the valve rotates when taking the valve core out. That's so great...

[@evancalitz4304]

Doddy for the WIN!!!!

[@hclee6103]

I've set the second pair of non-tubeless tire as tubeless just a few days ago. IMO, as long as the dry fit is okay (in this case, I can seat the tires easily with a track pump), it has a fat chance to work as a tubeless tire, all it need is some extra time and sealant to seal the bead and the tire wall. == I DO NOT recommend trying this on road bike, use UST or tubeless ready/easy tires only, so the tire would not pop out under high pressure.

[@Skracken]

Wot? Rim tape? I managed to set my DT Swiss E1900s up tubeless without using rim tape. Hahah oh dear! And it works! How lucky am I?

[@Monster-hx8qx]

They are tubeless ready, doh

[@Skracken]

@@Monster-hx8qx As in there's no gap in the seam of the rim. But they still should be taped. Mine started leaking around the spoke nipples after some more aggressive riding. So I taped them. No issues now. 2 year old comment by the way.

[@fuddam]

Thanks muchly. I only saw this AFTER I wasted a tyre's worth of sealant, doh! But now the tyre popped in a dry run. Thanks, Doddy! 😁

[@SuperExadidas]

Thanks great tips. Quick question, what if I will not use my tubeless bike tire for a long time?

[@pj3y55]

If you don't rotate the wheel occasionally, then some of the sealant will go off in the bottom spot; this happened to me this year (I left it unmoved for 6 months), just meant that I had a 'weighted' spot on my wheel. Noticeable when spinning the wheel when not riding the bike, but I can't say I've been aware of it when riding. Hope that helps. Some tyres will loose air quicker than others, so an occasional reinflation will keep everything in place...

[@goneflying140]

Hi. Thanks for the tutorial. I have an air compressor. How much pressure did you use initially to seat the tire and hear that "pop?"

[@AndrewBlucher]

Maximum the tyre can take.

[@anirudhalahari927]

Please do another hardtail week!

[@chriskeane2004]

Doddy in the thumbnail looks like a grown up Vault Boy.

[@enecristi4217]

Hi Doddy! Can you please tell me if using ammonium based tire sealant can do any damage to the tires or rims? Is it corrosive? (i have maxxis aspen tires and Mavic Crossmax SLR rims).

[@joseeduardoosuna1222]

Mega tip for going tubeless on a tubeless ready bike, pump your tire with a tube and only un bead one side of the tire this Will help a Lot when seating i got it first try twice with a floor pump withour removing the valve core

[@cameronlesley2428]

Doddy how much sealant do you put in a 29r as I've had seriously stupid amount of waste trying to put tubeless on . This video has shown me the light thank you cam

[@0983bozo]

Stans recommed 85-115ml of sealant in a 29" wheel. Other sealants are normally round the same about but check with the manufacturer for their guidlines

[@cameronlesley2428]

Bozo Stapleton thanks heaps

[@felixhora8535]

I am obviously making some massive basic mistake! I follow the steps, but cannot seem to be able to pump air into the wheel whatsoever (dry, no sealant liquid). It all leaks somehow out instantly, without creating any pressure inside the tire. I am using Ritchey tubeless ready rims, and Panaracer tubeless ready tires. Valve is placed the only way it can be placed as it has a circular rubber seal (and it's tightened too to the rim). I appreciate any tips!

[@recuperacion420]

I think a big one nobody talks about is when tubelizing a normal tire (non ust or tubeless ready) up front, It will be squishy or squirmy at the same psi than with tube. Thats because the thin carcass was not designed to be run tubeless. So some weight weenies like me like to use normal tires made tubeless, keep in mind youll have to use 5 psi more than what u used with tubes.

[@jubyf]

Dodzer is excellent 👍

[@petersymons7817]

Thank u

[@radutodiras8196]

After I fit the tire without the sealant and do the dry run I can hear air leaking out at higher pressure. Does that mean I didn't do it right or is it gonna be fine after I put in the sealant?

[@stevejoseppygreaves7534]

Cool video especially as I've been thinking about going tubless lately. Where can I get one of those pumps ? Could you send me a link for it please? Looked on eBay and any find the exact one! Thanks

[@gmbn]

Hi Steve, we use Topeak for our pumps and trail tools. This pump is the JoeBlow Booster. there's some more info about it here: gmbn.eu/JoeBlowBooster

[@michaeltowler2632]

I thought co2 degraded the Sealant , also you can get a valve for the Cartridge so there not a one time use. and you an always go up the servo and use their air at high pressure

[@lukeman91]

Quick question, I have a very small leak coming from the rim itself, where the rim is attached together... do I need a new rim? Without the sealent the tire leaks slowly out in about 25 minutes...

[@jseski9209]

Great job, Doddy! Unfortunately for me this video came AFTER I got orange sealant all over our kitchen floor (wife wasn't too thrilled about that!) ....dry run....genius, my boy, genius!! :D LOL Also, no frickin' way on the standard floor pump - gotta go compressor or surge pump.

[@riddickchappell]

here is a question for you, i have a 29er hardtail which is my only bike, i have to use it for commuting and weekend fun, for commuting i run 55psi and weekend fun 30psi, would this up and down with pressure be worth doing the conversion to tubeless or will i run into problems ?

[@edscoble]

Also worth noting to blast them without the valve core which work a lots better than with a valve core.

[@SmithFamilyRobinson]

Those Conti's mount superbly, never given me any issues - and that's using a track pump without soapy water. My tip for problematic new tyres... put a tube in first, leave it for 20-30 minutes then do your dryrun tubeless setup. Syringes are great, get one from the pharmacy $5 then go to the hardware and buy some 6mm poly-tube. A kebab skewer makes a good dip-stick down the valve to check sealant levels.

[@nickrogers6441]

exactly what I was going to write. Same for me, tube to get the tire out of it's folded state and then it seats nicely with a track pump. Conti tires, baron up front and trail king in the rear.

[@jeffbourassa7752]

First time setup, 29er stans no tubes and Minion DHF new tires. I have gotten the tires onto the rims and inflated to around 40psi, but I have not yet heard the "pop", I am using a floor pump and tires are holding at 40psi overnight - should I go higher pressure until the beads pop?

[@jontiummorkimus7111]

The only time I've ever had a problem fitting a tubeless tyre is when someone else has done the rim tape, every time I've done the rim tape myself it's sealed first time and the sealant lasts for literally years. Never bothered removing the valve core, never used a syringe to inject the sealant, just a track pump and some muscle! My tip is to use some sealant to help the tyre slip on in final fitting, no mess with soapy water and it will help seal the final fit; have soapy water standing by to wipe off any sealant dribbles.

[@julienriegel8246]

Did my tubeless set up with only a cheap floor pump. It popped perfectly in just a few pumps. I have DT swiss M1900 and Maxxis minions. I don't know why people make it sounds so critical to have a fancy pump or an air compressor. Don't be intimidated by it if you only have a floor pump.

[@PeterSzymanski]

Exactly!!! And even easier installation I like to use a few drops of sealant itself to lubricate the bead. You could probably use a silicone spray, but watch your brake rotors.

[@your_average_cultured_dude]

Fucking true. Pumping air is still pumping air, no matter what pump you have

[@user-sn4zp2ny5e]

I did it with a mini hand pump! Not even kidding, It took a few goes but I got it seated!!

[@FIGHTTHECABLE]

I was told CO2 is not good in combi ation with sealent. I used it and it seemed to have ruined my rear tyre.

[@ranga8038]

Originally I thought doddy was a bit of a pleb, but now he seems like a decent bloke. Cheers doddy! 👍

[@lazurm]

There's valid discussion around the CO2 issue where its cold temperature can ball up the sealant resulting in premature sealant failure. If using a CO2 cartridge, it's best to fill with the tire valve in the 12 o'clock position (so most of the sealant is at the 6 o'clock position, furthest away) and to let the gas in slowly. Of course, with a new tire this fact is irrelevant since you can use CO2 to mount the tire, prior to injecting sealant.

[@Psforlife-jk5sk]

Good

[@carlettob72]

Tried today a dry run...a lot of air flowing from the valve;only the valve;the other parts were perfectly seal. Any suggestion? Do I need to add sealant or switch valve?

[@magpie7791]

Do tubeless rims have a special profile? and what does it look like cheers

[@jonnygee4125]

I recently converted to a tubeless WTB ranger 29” , tested the bike on paved path for the first time and rear tire blew up. Cleaned up the sealant mess when I got home and put air back but I didn’t put tubeless sealant since I don’t have any at home. Tried to test ride it but seems to be losing air pressure still. Should I put tubeless sealant to the rear tire again? Or any suggestions.. just want to start riding with no more hassles 😫

[@ZeroSeriesMMX]

Question for you three lads on Whistler right now: are you all running on tubeless? And aside from the stuff Doddy's been using here, any backups or something?

[@guzziben]

I've had a few "tubeless ready" tires with porous sidewalls, the Orange Seal does a nice job of sealing them up. If sealant comes all the way through, that's a "hole". I think more important than tubeless ready tires is a tubeless ready rim with a bead shelf. Haven't had a burp yet with proper setup.

[@alexdoner3641]

I had one quick question because I've got tubeless tires on my bike but I don't carry CO2 with me while out on the trail I've just got a little hand pump that I use but I have my home pump would I be able to use that pump or would it strictly just be a CO2 cartridge that I'll need for when I do see my new tires on my rims

[@kingqman8250]

What tubless tire selant do you think I should use?

[@tuuxe]

Air compressor works a treat. Remove the valve core first as that limits the air flow, best way to bead the tyre

[@bloodyyanx]

yep. I couldn't get the tire to bead until I removed the valve core; then I put the valve back in 'started pumping with the floor pump & heard the magic 'pop'

[@jonienglish3231]

what up if your Presta valve core has no flats to remove core ???