Bottom Brackets that actually fix issues from BIKONE & Hambini

[@martindoonan198]

"... this ridiculous video..." are you kidding me? This is exactly the kind of content I like to come here for. 👍

[@Mapdec]

Nutter 😂. Thank you. 🙏

[@DPbike]

@@Mapdec and we all like to know the best torque setting for every nutter too!

[@markrushton1516]

Necessity is the mother of invention but it's mad these beautiful products are made to help solve a problem that shouldn't exist

[@COYSMike]

You've got to get the 5 year old on for some colab videos, would be so much fun and information for you both to share

[@georgeforeman89]

Right?? Hambini with the engineering knowledge and Paul with the practical experience. Perfect pair!

[@ericwilcock3239]

Love this content, bottom brackets are almost the dark art of bikes, getting the right fit is so crucial.

[@RichardSearle-vc6ql]

I chose the Token option with the center thread. I looked at the construction of Kuota KT3 frame, and thought no way am I going to torque that up, for the very same reason that you have said. Excellent videos by the way 👍

[@mopedvieh]

Although the connecting tube might add some stiffness, I'm pretty confident that only truly one-piece designs add a significant amount.

[@georgeforeman89]

There is so much fluff in the bike industry. It’s very refreshing to watch someone approach bike repairs and bike “science” (engineering) from a practical standpoint. Not talking about “compliance” or any other made up bike industry buzz words. You, hambini, PT, and GC Performance are a breath of fresh air and some of my favs in the bike world. Thanks for what you do!

[@Hambini]

I think P5 is the bearing class it's not the fit class, there is a page on my website that explains this "Bearing technical information". But I could be wrong... There are lots of oddballs in the bike industry. Also if it was the bearing outer fit, it should should have a small p. ie p5 and not P5. 41.2mm yikes... Is someone having a laugh?! The bearings in the BB that you have are Toyama, they are not generic, it's marked on the outer race (you would need to remove the bearing to see it). Last year, NTN moved their production of small bore bearings away from Japan and subcontracted it out, and I don't think their quality is as good as it used to be; this coincided with an influx of fakes. Additionally, in non-contact seals, NTN has a virtual monopoly as they are considerably better than others, so they can charge a premium. In 2RS, there is not much to differentiate between bearing suppliers, and there is a lot more supply, so the price is more competitive. I prefer to get my bearings made in Japan (because they respect honour codes) so I choose one of a few eg, NSK, Koyo, Toyama, SKF, INA etc.

[@Hambini]

I forgot to add, T47 and BB86 will be on the way soon. I was a bit sceptical as to whether the SRI bb's would prove popular, but those fears have been allayed.

[@Mapdec]

It’s 41.1. I misspoke. I did put a little *. The micrometer shows. I was pointed to an SKF page about the P5 but it did cause some confusion here. It is +0.15. A little bigger than the enduro. Well done for noticing.

[@Mapdec]

@Hambini I think some Factor Ostro, and Trek Madone owners will thank you.

[@knockerw51]

⁠@@Hambiniinstalled my SRI yesterday. It’s fantastic!

[@theillegalimmigrant9314]

I received mine a few days ago. It has been faultless.

[@johnlesoudeur3653]

I am having success with the Shimano SM-BB94-41A PF BB fitted dry into the carbon frame (Scott Spark) with a bearing press. No creaks and continues to run smoothly with the XTR cranks. I swapped out the original 30mm Next SL cranks and RF BB...and never looked back. I have used Acros in the past with good results and friendly service. Thanks for the exploration to find BB nirvana. I really think that for carbon frames a decent PF is the way to go and threaded for Al alloy frames.

[@Mapdec]

Nice.

[@Miraflores1990]

I agree about that. Evo being my favorite for carbon and BSA for steel and T47 fot aluminium

[@NeilSnapePhotography]

Both look good. I have been following Hambini for a long time, being an engineer way back when I like what he does.

[@mattpeters7884]

You're one of those people who walk into a bike shop and tell them you're an engineer aren't you? 😂

[@mbcracken]

I've had pretty good luck with my Wheels MFG BB86 ABEC-3 BB for my GRX drivetrain on my Salsa Warbird. The Warbird is not known for having the best tolerances but so far this BB has helped keep the cranks/bb quiet.

[@wearejames1]

If the cycle industry has now realised that press fit bottom bracket don't work that well in practice (probably because they can't deliver the required size and geometric tolerances) why go to threaded that isn't one piece and robustly bonded to the frame?? It just sounds like another cluster f$@k and a whole load of pain/warranty issues for the customers who have paid alot of their hard earned money on. It would be so bad if it was from lesser Chinese manufacturers, but from what you have said it is from the big named brands. Not sure that I would consider low contact sealed bearings unless it was for a TT bike, I expect most wouldn't notice the extra friction from a better sealed bearings, but enjoy a longer life bottom bracket😀 Once again a great and informative video👍

[@Miraflores1990]

Just love how you explain the concepts in an easy way. Quite an interesting brand with the o rigns. I havd to say that their website is not very clear haha. I like a 3rd interference place to increase stiffness

[@DPbike]

Even more happy I purchase a LOOK. A bit heavier, partially due to the bottom bracket design, but with more piece of mind that the frame should last well and be worth the substantial cash investment!

[@youling1997]

But all modern frames are back by life time warranty. I would not worry about the bike breaking on me. If it does I'll get a new bike for free.

[@DPbike]

@@youling1997 Hi yes absolutely many have a lifetime guarantee. You often do not get an exact like for like replacement though. And of course you have time without a bike and have to pay for the rebuild, unless you do it yourself. If there is little difference in purchase price I personally would always go for the ‘higher quality’ frame even if it has a slight, potential, performance disadvantage. Having read much about the LOOK I think it’s likely right up there with the absolute top tier performance wise. I also bought with my heart as had LOOKs before when younger and this Blade in the colour I bought certainly floats my boat :)

[@raysmith2602]

Whilst I don't doubt your experiences of bb threaded inserts coming loose I can happily report that I have a 16 year old pinarello quattro fp4, owned from new and done many thousands of miles including touring. I honestly only replaced the original Shimano Italian bottom bracket last year. The frame was made in Taiwan and proves that it can be done properly.

[@valmorell]

I guess it's fair to say this is a video that shouldn't need to exist. We sure do get ripped off by some of these manufacturers

[@InquisitorCortez]

Hey Mapdec, thanks for putting out these BB videos, great info for home mechanics. You mentioned recommending BBInfinite for BB386 - have you fit this on a Time ADHX before? I am considering this combo but am a little worried about clearance for the hydraulic cable over the top of the BB. The plastic cable guide I will probably cut down along with the bolt, or remove entirely. How do you approach fitting a one-piece in the ADHX? Cheers!

[@Mapdec]

I generally try and talk people out of the idea because there is no benefit, but if you do the bake hose will fit underneath. You need to remove the cable guide and just leave the hole open, or plug with a rubber gromit from Jagwire.

[@leonleber7059]

So much great info in this video. Butt im still happy with my un52 square taper

[@stuartbennett4476]

Nice video Paul. Some food for thought. I think if my threads debonded, a sleeve like the FSA BB30 adapter to put new threads into the frame would be ideal. Note to my future self: if that happens get a local machinist to knock one up 😂 Or just use it as an excuse to buy a new Time or Look frame 🎉😃 Looking forward to your future videos on the bikeone BBs

[@Mapdec]

I do wonder if it would be easier to convert to pressfit

[@Harald-s9s]

the bikone looks very much like the t47 bb from bbinfinite?

[@98GuitarTECH]

Ordered the SRI BB for my alloy frame. Hopefully not the most necessary purchase for aluminium but improved serviceability is always high on my list

[@thedronescene7474]

Can you review Chris King BB? They have their own design with their own bearings.

[@Mapdec]

We do use them time to time.

[@thedronescene7474]

@@Mapdec Do a video pls :) I have one myself but have always wondered how they compare to normal bb, and more premium ones.

[@MikeFalder-vq4xr]

Great video, quick question how does the BIKONE oversized bb90 bearing compare enduro oversized 37.1 bearing for size

[@Mapdec]

From these measurements… about the same.

[@jesusarcellana]

bikone bb86 bottom bracket dc tech vs bbinfinite bb 86 one piece module for a crank spindle under rotation issue which bb will you use

[@Mapdec]

Bb infinite

[@damianlowe7808]

Great content keep up the good work. I do have an Emonda SLR 8 with the infamous BB90 BB if you can let me know where to forward my details as I'd would love to try and see if they last in the cornish lanes.

[@Mapdec]

Cool. Contact us via the website and bring your bike in. We still have them.

[@Harald-s9s]

the bbinfinite is presented at the start but then it just sits there with no further mentioning?

[@Mapdec]

They get mentioned in lots of other vids

[@Harald-s9s]

@ I looked up your definite bb video and you basically concluded that bbinfinite is a fair weather only bb, so that would be the main difference with bikone? durability in poor weather conditions?

[@Lockdown_workshop]

What compound do you use to pack any gaps or lose fitting

[@Mapdec]

Depends on materials and gap size.

[@Ernst78NL]

A 6805 or 6806 bearing?

[@rc03seabee]

@Mapdec: Curious what were the real life experiences with the BIKONE T47 internal dpc Shimano performance and longevity once fitted?

[@Mapdec]

I think it is still too soon to report.

[@rc03seabee]

@ pitty. I am thinking to buy one. Main reason is the sealing of the spacer tube as my mechanical front derailleur cable opening in the seat post tube is a potential ingress point for water.

[@Harald-s9s]

I mean what is exactly the difference between the t47 of bbinfinite and the bikone? if they are similar the bbinfite has the advantage of not being out of stock….

[@brandonoesch4417]

I have a 2019 trek Emonda SL7 that I’m actually needing to replace my bottom bracket bearings.

[@jennibristol7720]

I am still watching :) and geeking out 😅

[@Mapdec]

Well done.

[@legslloyd6701]

Hi any information about SN- Viate bottom brackets

[@Mapdec]

Not much sadly.

[@tommays56]

Everybody amazed that a SIMPLE part can be made to and easy specification

[@Mapdec]

i know right.

[@felixjackson2670]

Good. Thank you. Funnily enough,very recently had a local bike shop contact me-removal of worn out press fit BB on an old giant resulted in the aluminium threaded insert pushing out.. I did successfully bond it back in..no more creaking😅

[@gregmoxham2120]

I think the comments about going back to threaded not necessarily being the answer to all of our prayers is spot on. No matter the interface, if the frame manufacturers can't make something to spec / in tolerance / fit for purpose, we're sadly no better off :( Also XHP222 FTW 😀

[@Gooliverr]

Hail XHP222, I was hesitant to use it at first because of its thickness, but BIKONE convinced me to load that stuff into more places

[@kevinfrost1579]

Always interesting and current cheers 👍

[@madmonkeycycling9098]

Does the new Time Alpe D'huez Disc 2024 have enough clearance for the Hambini bottom bracket & hydraulic brake cable, or still need some dremeling?

[@Mapdec]

It’s never needed any dremel. Who told you that?

[@sccxvelo]

Thinking if the new hambini BB if it is cheaper with international shipping to west coast USA then get it for my 2017 railegh CX/ gravel bike if it will last much longer then fsa mega exo.

[@woody3384]

I had a 2015 Emonda with BB90 it went from normal bearings to oversized and then Trek Under warranty re carboned the bottom bracket. The creaking continued and in the end they replaced the frame with a 2018 frame with another BB90 😭 Within 6 months the creaking started and were back on oversized bearings again

[@sbccbc7471]

This is why I hate BB90.

[@mariuszw2263]

You said that you do not think a threaded solutions like Token Ninja are not ideal for carbon frames due to the required torque. And what do you think about those for aluminium frames? The thing is - in my 2019 aluminium Trek Checkpoint I have a PF41 BB shell and I'm looking for a creaking-free solution to pair with the Shimano GRX crankset. As far as I checked the Token Ninja is the only readily avaliable option (at least currently) in the region where I live.

[@trevekneebone369]

More choice in Italian threaded (ITA?) bottom brackets please 👍

[@Mapdec]

Can’t we just campaign that ITA is a standard that needs to be forgotten.

[@trevekneebone369]

@@Mapdec Not really. I'm too invested with my Colnago Master and Rossin bikes 😜

[@M3GRSD]

Watching this for a second time, I have a Trek Madone with the BB90 standard, and the Ninja "thread-together" wore out in a year. I should have expected from the cost, it was a cheap bottom bracket.

[@Mapdec]

The ninja BB is about the best option for a worn out BB90 shell. Sadly the bearings are so small, they will corrode and wear out fast.

[@iainmcdutube]

I must have fitted every PF41-DUB bottom bracket out there. From ceramic (expensive, don't last 2,500km), OEM (cheapish, sort of last 5,000km), even China-special (cheap, don't last 1,200km). Will now give the Bikone a try, but pretty close to changing to a new bike just to get away from such a sub-optimal BB standard.

[@Mapdec]

Why not get your frame checked first? Make sure the bore is correct. For that size it is a nightmare. BBinfinate do a good one but not very weatherproof if you want low friction. Otherwise. Enduro XD15 probabaly the most durable.

[@iainmcdutube]

@@Mapdec Brilliant advice. Thanks for that. Will give their stainless one a try before pulling the trigger on the more expensive XD15. But yeah, PF41 and DUB is a nightmare.

[@RobPollen]

what did you think of hopes PF41 BB ?

[@xawerionify]

I ordered for my sram DUB from bikeone. Bearing have non-contact seals, so water can get into the bearings much easier. The new bearings made noise. Was are crap. So i replaced with Enduro 61806 LLU/LLB.

[@Mapdec]

Is this the Bb86 to dub ?

[@xawerionify]

@@Mapdec It was t47 in Look frame. The new bearings made noise when the crank was turned without any load and without the chain. It was as if they were worn out. So i replaced with Enduro bearings.

[@Mapdec]

@@xawerionify interesting. I would love to see those bearings if you still have them.

[@xawerionify]

@@Mapdec I have this bearings but i live in Poland i can email to you some photos.

[@Mapdec]

@@xawerionify that would be great. If you can lift the seals up. I would really like to see the bearing cage. You can upload on the website contact form. I would like to speak with Bikone.

[@derbiwipac]

What is the best solution for a specialized mtb bsa frame with a dub crank ? Face the bottom bracket or one bb model is better ?

[@Mapdec]

What BB hole does your frame have?

[@derbiwipac]

@@Mapdec specialized epic 2024 . Bsa threaded.

[@Yamaha_Bolt]

I had the LBS install a Wheels Manufacturing BB on my Orbea Orca when they installed my Ultegra Di2. I now see uneven witness marks on the crank spindle, the drive side is 360degrees around, the non-drive side it's about halfway. I didn't have any witness marks with my old 105 press fit BB. LBS said they are normal and that the only reason I never had any with 105 bearings is because of the plastic cover on the bearings. Thoughts?

[@Mapdec]

is this BSA or Pressfit?

[@Yamaha_Bolt]

Press fit.

[@Mapdec]

@@Yamaha_Bolt it’s most likely that the plastic BB dealt with some minor misalignment with its squishy compliance. I would go back to using a Shimano. The metal BB can often cause more problems than they solve.

[@mo6571]

The marks on the spindle he is talking about come from the fact that there are no delrin top caps in Wheels MFG bottom brackets. Bearings are sized so that they make direct metal to metal contact with crank spindle which causes these marks. I know because I own a BB from Wheels MFG. For me the solution was to purchase top caps from Hambini and change bearings in Wheels MFG BB to a different size accommodating these top caps. Problem was solved, but the total cost of this BB was then not worth it in my opinion. Wouldn't buy a BB without top caps sitting between bearings and crank spindle anymore. Too bad I had to learn the hard way.

[@Yamaha_Bolt]

I'll look into that. This BB cost me $300 CAD so it's a bit disappointing that it needs this retrofit.

[@_cpdchua]

Nic Vieri (from the Backyard Bike shop) talks highly about Enduro Bearings' bottom bracket. Any inputs about the brand, Paul?

[@MultiRossm]

@mapdec. I'm struggling to solve my bb90 oversized issue. Currently waiting for trek to give me their analysis. The oversized bearing doesn't seem to solve the issue. Any advice on which one of these could be best ?

[@Mapdec]

Trek might fix it with insert. This BIKONE might work. Or that token one i showed in the vid.

[@danielveit1622]

Thanks for the video Paul, I am hoping to buy the overdue next Scylon and am about to preorder a Hambini bb to match my dream bike. Now I learned that I would need spacers to achieve the correct chainline. If this is the case and the Hambini bb does not come with the necessary spacers, could you possibly point me to a place where I could get decent ones? Also: what kind thickness would be required. Thanks for you informative content! It makes me want to visit the Lake District too. It really seems to be a lovely destination. Greetings from Germany. Kind regards, Daniel

[@Mapdec]

depends on your crankset and chain line requirement of the groupset. All the info is in the manual.

[@departurexx1520]

BIKONE BB for campagnolo? It seem they didn't have it for campy.

[@Mapdec]

To be fair. Campagnolo make excellent BB and it is rare you need to look beyond them

[@departurexx1520]

@@Mapdec I'm talking about the casing, not the bearing. I'm currently using CEMA...should I upgrade it? Reason is that I want to feel more stiff in this BB area. Just curious the BBInfinite will have a better quality BB than CEMA?

[@Mapdec]

@@departurexx1520 we installed one in this video. It’s not a great solution and I wished we stuck with the campy BB. A tribute to the best bike tech of the rim brake era. kzbin.info/www/bejne/oqTSaKmBbtCLZ5Y

[@edphillips4987]

Another great video. Do you think the Bikeone PF86 DUB will be a better option than the standard sram BB to make best of bad combination?

[@danielmoorhouse6506]

Hi. So if I purchased the new cheaper Hambini bb then would I only need to replace the bearings on wearing out and the shell would be reusable? Many thanks if you can help.

[@Mapdec]

That is correct

[@AdelBazzineFredrikaBremergymna]

Nice video and BTW where can i order the mechanic t shirt ?

[@davidkennett2372]

Great video, very informative. What would be the best BB for a Factor Ostro VAM/ Currently running a ceramic speed T47. Thanks

[@Mapdec]

Rotor works if frame all faced and ok. BBinfinite make a really good one. I have seen a brand called CEMA also make a more rigid model.

[@albertosantangelo6872]

I saw your other video where you said for press fit with Shimano crankset the best option was the Shimano Ultegra bb. I am buying a Time bike but I don't know which bb I should fit now after this video :)

[@Mapdec]

For a BB86 that has 41mm bore. Time Frames have BB386evo and have a 46mm bore. You can fit whatever you like in that.

[@albertosantangelo6872]

@@Mapdec I see. I don’t know what I like. Something light and durable would be great I guess. Rotor?

[@matanhale]

@@Mapdec Any thoughts on SN VITAE BB's - wondered how they compare to Hambini / BB Infinite

[@jamble7k]

i don't understand why you would buy a hambini bsa bb when you can just get a 20 quid shimano one?

[@petejohn]

I am slightly confused, these bb's are trying to correct an interference fit that is oversized either due to wear or initial poor tolerance in manufacture. If that's the case, why the hard shell aluminium? Each frame oversize is going to be different and thus forcing in an oversized BB aluminium cup could cause damage? Or are we saying tolerance doesn't really matter? The point I'm getting to is that surely bearing retaining compound (many types including those that fill a gap) should negate the need for a generic fixed sized BB designed to fill a gap which is going to be different on every frame? I understand that those bespoke bb's Hambini does are entirely different and, because they are bespoke, a perfectly reasonable solution.

[@Mapdec]

You are kinda right. That’s why I was calling on BikOne to publish the dimensions. With the oversize BB here it means we can salvage an oversized frame by reaming to a consistent bore on both sides and fitting an oversized BB.

[@chefsmac6910]

Great video! Off topic question; I have a 2024 Look 765 optimum and I have bent the derailleur hanger, twice. I think it’s made from cheese. Do you know of anyone making stouter hangers for the bike? I’m in the USA. I love everything else about the bike.

[@Mapdec]

We use the Pilo ones from gearmechhanger.com

[@Onigure]

I have an Emonda that uses bb90! I live in Chile, South America 😅.

[@Mapdec]

Cool. Pop in 😂

[@clp91009]

Excellent content as always Paul. Do you have any thoughts on Colnago T45 to replace threaded cup with BB86 press fit? I’m thinking Ceramicspeed T45 but interested in your experience, cheers.

[@Mapdec]

Sorry, that doesn't make sense. Colnago need a T45 bottom bracket. you can't make the frame have a 41mm hole for BB86.

[@clp91009]

@@Mapdec Colnago use a threadfit cup system on some frames. The cups then accept a BB86 pressfit. Its a system only used by Colnago. If you remove the threaded cups the frame hole is 45mm x 82.5mm and will accept a T45 threadfit.

[@Mapdec]

@@clp91009 I bet they do that for OEM bottom brackets. I have only seen frames and have fitted a T45 from a brand like ceramic speed

[@clp91009]

@@Mapdec Is Ceramicspeed T45 a good choice?

[@peterahlstedt2043]

Its pity that we in Sweden cant buy a LOOK frame in this country to get a proper bottombracket shell. Swedish bike shops ar so scared to start selling a new brand so almost all bikeshops sell exactely the same bikes in Sweden

[@tinniswood2577]

I only wanted a new Dork Disk!

[@rbasoalto]

Is XHP 222 good for sealing and around bearings, or do you also use it for lubing the bearings themselves?

[@Mapdec]

it has good waterproof properties, does not wash away easily if thats what you mean.

[@iddra1868]

​@@Mapdec Is SHC 100 just as good? 222 is a bit hard to find around here and I need a new grease.

[@rbasoalto]

@@Mapdec great! my question was a bit about that, but also about what grease do you use inside the bearings themselves? (not racing or anything ultra low friction, but for the weekend warrior) Actually, a video going over what kinds of grease you use for different purposes would be AWESOME. Thinking out loud: rolling bearings such as hubs and BBs, suspension pivot bearings, headset bearings. And also non bearing moving parts like some full suspension frames that use bushings at the pivots. And seals (hubs/BBs/pivots), assembly grease or anti-seize for stems or seatposts. There's probably less uncertainty around suspension forks and shocks, the manufacturers tend to be very specific in their service manuals.

[@oheso]

Forgive a stupid question, but is that a BB that relies on O-rings for the connection to the frame?

[@Mapdec]

No. And sorry for the confusion. The metal parts is still the correct size. The o rings remove the need for a retaining compound. They might prevent some level of corrosion.

[@oheso]

@@Mapdec Thanks that makes it clear. I was scratching my head.

[@morneauh]

I bought a Time ADHX and I put the Rotor ceramic (the standard version was out of stock) using the Loctite 7649 & 641. I went with that based on other video you made. Maybe I should I went with the BBinfinite, time will tell. BB are the most confusing part to buy when you build a bike. So many standard, each standard have different name, each one have different build (1 pieces, 2 pieces) made of different material(metal vs plastic) with different bearing type (ceramic vs metal, different type of seal) etc. And would be nice if it stop there, but then you still need to figure out the spacer you need, I put none on the non drive side and 1 on the drive side. Time provide no instruction manual, so that doesn't help.

[@Mapdec]

You did great. A one piece is overkill on a Time.

[@morneauh]

@@Mapdec I just took the crank out and checked the bearing for fun. They are crunchy after 3000km. On the drive side it even started polishing the crank shaft. Rotor 👎

[@croweatr]

Love this. Videos we actually need. Gold.

[@grabslide]

Have you used Shc 220 ?

[@Mapdec]

Yeah. To be fair it would likely work better in dryer countries.

[@PanaehaliTut]

Nice video! But you forgot to explain what is wrong with Token BB. I was about to buy one for my Scott Spark MTB. Now Im confused :)

[@Mapdec]

just the compression load on the frame.

[@PanaehaliTut]

@@Mapdec because of the threaded connection?

[@DanTuber]

Still watching and don't understand most of it. lol. Do you have any opinions on the ride now BB's?

[@Mapdec]

I didn’t know they started making BB.

[@DanTuber]

@@Mapdec Been doing them for a long while

[@mtbboy1993]

Maybe thread press-fit system is fine on alu. I've not heard of this brand. thx for showing this. I looked up Bikone: Norwegian dictionary showed up: woman with whom one (marries and) has children in addition to one's actual wife 😀

[@Mapdec]

haha awesome

[@gregmoxham2120]

Hambini claims the following about the SRI BB: "The methods used to manufacture this bottom bracket are unlikely to be found anywhere else within the bike industry" And "The load rating is significantly higher than the competition" Whilst these statements may be true, I couldn't find any data to back them up. Any ideas?

[@Mapdec]

just guessing, but it is probably a type of alu that doesnt take to anodising easily. Perhaps it is cold forged like a carabiner

[@kevvjj2629]

Hambini speak for "I just make shit up! don't ask me for evidence"

[@Frostbiker]

As a punter on the Internet, it's hard to understand how this is a problem in the first place. This isn't F1, it's just a human-powered device, and at the price of a high-end road bike one would expect excellent reliability. I'm guessing that the market values weight and good advertisements above reliability; I can't think of any other reason.

[@Mapdec]

You nailed it. Buyers are blinded by weight and cost. There are many pitfalls to that approach.

[@anthonylarson7919]

it isn't a problem.... biking for 50 years, never had a BB fail and I bet the shite out of my bikes..

[@ivanteo1973]

in my opinion, as long as the part is split into 2, the rigidity is no longer there anymore, especially if you compare with the hambini BB.

[@Eirikkinserdal]

Bikone doesn't make a t47a for the factor ostro. Just t47

[@Mapdec]

well spotted. thats frustrating.

[@Eirikkinserdal]

Have you looked at bbinfinites t47 solution?

[@sbccbc7471]

​@@Eirikkinserdal I actually like theirs the most, it's practically a two-in-one bottom bracket. Perfect for those who switch from T47I to T47A or vice versa.

[@deanf2259]

Sram DUB BB are rubbish. You are lucky to get 6 months life. I now used a Enduro Hitmax on my Genesis CdF Ti 68mm BB shell external cups. For my new Giant Revolt I have fitted a Enduro PF41 X15 D. Both of these have life time warranty. No brainer. Especially for me as I'm a high mileage rider. Paul why not use Enduro X15-D P41 on Time frames?

[@Mapdec]

Mostly because they are never in stock and are pretty much the same as Rotor etc.

[@Dolmar-Rick]

T47 looks amazing 😂......🤥

[@MichielvanderMeulen]

Facing diameter wouldn't have to match the bearing housing diameter, if you'd ask me.

[@Mapdec]

The flat part does need to be bigger than than the BB though.

[@MichielvanderMeulen]

@@Mapdec Why?

[@MichielvanderMeulen]

@@Mapdec I don't have the flair of Hambini but I could do a PowerPoint where the pen is working

[@Mapdec]

@@MichielvanderMeulen because otherwise the BB still screws onto an uneven painted finish and rocks. Except now it’s worse because the BB is supported up 1-2mm of paint.

[@MichielvanderMeulen]

@@Mapdec Ah, of course, the face should be flat! I first thought you meant the BB needs all the support area.

[@tacos8910]

LMAO BIKONE's design is supposed to help stiffness?? no way! They put an elastomer right in the middle of the stiffening mechanism with slide fit. That's like saying "by spreading mayonnaise all over my body, I'll be 5% more aero"

[@bikemellon]

would you mind sharing which facing tool(s) you use? i'd really like to get mine done (i have a tarmac SL7 with the problem you mentioned in this video) and would like to do the work myself as I am not lucky enough to have a shop like yours nearby!!

[@Mapdec]

If I was buying new I would get the Cyclus tools ones.

[@doctorscoot]

I wish I understood half of this stuff. I shouldn't have abandoned electrical engineering for computer science!

[@Mapdec]

I think you are better off

[@doctorscoot]

@@Mapdec I don’t understand how we can make high speed turbines, nuclear submarines, aircraft, and space telescopes but a set of human powered cranks in a bicycle ends up being such a shitshow. 🤷‍♀️

[@Mapdec]

@@doctorscoot marketing led design and quality control cost cutting. Trying my hardest to educate folk how to identify the good stuff.

[@doctorscoot]

@@Mapdec you’re doing a good job with that! No one makes it easy, with all these many & weird BB standards and axles and proprietary fastening systems around (shimano left crank preload tool? wtf? Why not use a hex key?! And that’s one of many!)

[@philturner927]

Shocking that such expensive frames can be so badly engineered. I've only ever owned metal frames for reasons like this.

[@maddoc68]

And the bloody bike industry companies sell all that crap frames for a fortune 🙄

[@statom985]

spend ridiculous amount of money on a bike, be left alone with problems, bb etc fck logic

[@MrRedChamp]

@Mapdec I don’t understand why you continue to promote Hambini. His information on BB tolerance maybe correct (as he works in manufacturing, correct tolerancing is day to day stuff) however his behaviour elsewhere is immature, sexist and a shock jock. This is the opposite of what Mapdec seems to be basing your business on and promoting. Professional work and attitudes in the bike industry at the customer level.

[@Cyclist-o6e]

It’s literally why I unsubscibed. Mapdec videos mentioned a guy named “Hambini” so much that I checked out his channel thinking I’d find someone wise and an expert on bicycle maintenance. Unfortunately, I found any but that. Instead, I found out this Hambini fellow is involved in feuds with multiple people online, has been accused of very questionable behaviour and his maintenance videos are not very good. It seems like he hates his bicycles the way he treats them. Anyway, it changed my opinion of Mapdec.

[@chaosflower4892]

Hambingo is insufferable.

[@Manetty6]

This video is still ridiculus. Imagine that, you bought an extremely expensive bike/frame. Turns out it's shit. Now you got the task to buy a fackin expensive bb to solve the problem. As the problem as Hambini shouldn't exist. Cheers.

[@Stealthwealth1001]

If your BB isn’t made by Hambini it’s sub standard. Only the old square taper BBs are better.

[@mofomartianp]

LOL Hamboner is an insufferable douche, the only thing more inflated than his ego are his prices.

[@EllasPOSEiDON]

Press fit bb should be cancelled on every level.

[@Mapdec]

Oh. I guess you didn’t get to that part of the vid yet

[@Dolmar-Rick]

Don't talk shite.... from that comment, we should get rid of t47.... looks a crock of 💩 if you ask me. That's why Giant went away from that threaded insert design years ago but 🔔🔚 specialized decided to bring it back 🤦🏻‍♂️. If pressfit is done right, there's no issues

[@EllasPOSEiDON]

@@Dolmar-Rick A "not just glued in two pieces thread" but a proper threaded bb shell is obviously far better bb design than any press fit. Pressfit simply doesn't make sense, but of course not sensible engineering made that shite, but money saving.

[@mofomartianp]

@@EllasPOSEiDON problem with threaded BB shell on a carbon frame is bonding the alloy shell to the frame. You have all the design limitations of a threaded BB with none of the benefits.

[@gweflj]

@EllasPOSEiDON All BB bearings are press fit. The BB shell of a BSA threaded isn’t the outer bearing race… Your point on cost saving is completely backwards. The only issue with press fit is crap BB shell tolerances due to accurate tolerances being more expensive to manufacture. It’s far easier and cheaper to bond in a threaded shell but then you end up with heavier BB’s, compromised frame design due to narrower BB, and eventual galvanic corrosion between carbon and aluminum shell.

[@RICHARD.WRIGHT1]

Bikeone are total crap. Unbranded cheapo bearings. I was presented with one the other day. less than ideal.

[@Mapdec]

Most bearings are unbranded or rebranded. What made you think they were bad. What happened

[@RICHARD.WRIGHT1]

@@Mapdec i don't trust verymuch unbranded components.(on the contrary,Hambini's are unbranded BB's the bearings no they're NTN. But we do have his Engineering channel which proves his theory and justification of that theory, I bought several bb's from him all are 100% Top products). The two sleeves(threaded T47) were over tight(out of tolerance) to slide together. As per the version you showed with PF using not 1 but 2 O'rings does'nt look like a good Idea or necessary really. As all PF bb's should be interferance/friction fit, thus allowing for next to zero non contact of the two faces bb-bb shell. The principal of Hambin's BB is that one Longer side fits into a shorter one is more precise and most probably less prone to deformation under load. This T47 Bikeone being a 50/50 setup, depends entirely on the quality of the threads being perfectly alligned L/R.

[@Mapdec]

@@RICHARD.WRIGHT1 so, you haven’t used one…

[@RICHARD.WRIGHT1]

@@Mapdec no and don't intend to. I'll leave that to my customers.

[@kevvjj2629]

"Bikeone are total crap... but I've never actually used one" What a stupid ill-informed post.