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  1. #1
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    Press Fit BB's Love em? Hate Em?

    I am currently riding a carbon Giant XTC with a press fir BB. Any fans out there? I had to have it torn apart 3 times before we got rid of the creak. I must say I'm not a fan. Any thought or rants? I am currently looking at a newer FS 29er to add to the fleet and I think this is one of my considerations and one of the biggest reasons I am steering towards Yeti SB95C. It seems like most all of the other carbon frames are press fit. I know you suffer on the weight end but I would rather put up with a little extra weight than a creak all the way up the mountain.

  2. #2
    ballbuster
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    Yeah, I would love to hear feedback too. I'm looking at a Chinese Carbon BB30 frame to run singlespeed, and want to use a Beer Components EBB30 BB. It would be nice if it wasn't all creaky and S***. I like a silent bike.

  3. #3
    1*14*29*2.1 & 1*1*29*2.4
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    no experience with them but opted away from them on my custom build from the few that had bad things to say about them. That and I prefer the old ST BB's.

  4. #4
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    How did you get rid of the creak? I have been fighting it since I got my Stache last fall.

  5. #5
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    Love the idea but hate using them.
    The LPG

  6. #6
    Elitest thrill junkie
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    Mine (in an alu frame) doesn't creek. Only took a few months to kill one of the bearings though. Luckily the local bearing shop keeps this size Enduro bearings (Real World Cycles) in stock. We do have a LOT of mud, so it's somewhat understandable. Theoretically it's not going to be much different than a bearing that's pressed into a standard bottom bracket that is secured in the frame. Realistically the tolerances and manufacturing is all over the place and not controlled, as it would be with bearings pressed into a bottom bracket. This is the problem IMO. Press fit is a solution to a problem that doesn't really exist for most bikes, but for carbon bikes they need a new standard, because A you can't make small carbon fiber structures easily and B you damn sure can't make threads for a threaded BB, so the standard has to change to facilitate manufacturing carbon bikes, whether or not the bike in question is actually carbon or not.
    "It's only when you stand over it, you know, when you physically stand over the bike, that then you say 'hey, I don't have much stand over height', you know"-T. Ellsworth

    You're turning black metallic.

  7. #7
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  8. #8
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    BB30 on a Cannondale I owned... hated it, bearing life was crappy.

  9. #9
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    I put a raceface press fit BB92 in my XTC and no creaking at all, did you grease the cups before your pressed them in?

  10. #10
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    Press Fit BB's Love em? Hate Em?

    Mine has creaked from day one. Probably going to dump the frame because of the creaking. 2011 spearfish.

  11. #11
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    After not such great luck with others, I've had great luck with Praxis for my PF30/Shimano XT application.

    But that won't change the fact pointed out by Jayem: real world manufacturing tolerances are all over the place.
    The drive towards achievement and success is the motive power of civilization.

  12. #12
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    Quote Originally Posted by vcyclist View Post
    It seems like most all of the other carbon frames are press fit.
    I totally agree with you about being anti press fit.

    Don't overlook Santa Cruz. Reportedly all their frames have threaded bottom brackets and the even cite the same reasons as you.

    Santa Cruz Bicycles Tallboy Aluminum

  13. #13
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    Yeti has all threaded as well.

  14. #14
    Merendon Junkie
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    Totally HATE them press missfits

  15. #15
    transmitter~receiver
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    Quote Originally Posted by pvd
    Time to stop believing the hype and start doing some science.
    29er Tire Weight Database

  16. #16
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    Hate

  17. #17
    I Tried Them ALL... Moderator
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    Always stand on cranks = HATE

    Always sit and spin = LIKE
    "The mind will quit....well before the body does"

  18. #18
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    Quote Originally Posted by Zachariah View Post
    Always stand on cranks = HATE

    Always sit and spin = LIKE
    Pedal like you mean it (then do the all too often maintenance) = Hate

    Pedal like you're waiting for your BB to start creaking=Like

  19. #19
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    The trick to all press-fit bb, you put a very thin layer of Honda bond on outside of bearing or outer surface area where it will make contact to frame shell. It forms a rubber like layer but not glued in place. No problem getting it out when needed, all noise is gone!! Mega gray rtv sealer works also.

  20. #20
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    Hate.

    Posted via mobile

  21. #21
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    I avoid them for the fact that its not as easy to install as threaded BBs. If you need to replace the cups, the second set won't be as tight as the first one, and now you have a noisy/noiser BB.
    Manufacturers do them for cost savings, stick to companies like Yeti or santa cruz, they go the extra step for a more trouble free BB.

  22. #22
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    I have had no issue with press fit, just another tool added to the collection. It's not like there isnt 6 different threaded types either.

    Sent from my SM-N900W8 using Tapatalk
    Giant XTC 2 29er
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  23. #23
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    Press Fit BB's Love em? Hate Em?

    I have three bikes with PF BB's, I have had creaks and have always found them somewhere else. Most creaks are almost always in another area.


    Sent from my iPhone using Tapatalk

  24. #24
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    hate em.

    The manufacturers did not put them there for your convenience.

  25. #25
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    I have a Rocky Mountain Element 999 RSL carbon with bb92, the reason they use this bb is because its larger making for larger connecting points for down tube, seat stay, chain stay. This all adds up to stronger more ridged frame. Larger is stronger less flex and last longer. Threaded BB are going bye bye soon, carbon is taking over the world !! Love it !!

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