Stache bottom bracket replacement- Mtbr.com
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  1. #1
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    Stache bottom bracket replacement

    I've been riding a 2017 Stache 9.6 since spring, love the bike, but the bottom bracket shell has me scratching my head. The original BB is toast after about 400 miles, so I removed it. Most BB shells are a "straight" tube, not so on the Stache. The lower seat stay has a slightly concave shape which protrudes into the bottom bracket shell just enough to make most bottom brackets with a center sleeve unusable. I tried two different Wheels Manufacturing products, the pressfit that threads together and the pure pressfit, neither will work. This frame looks to require a BB that is merely two cups without a center sleeve which is hard to find. That or I continue to use the SRAM $30 bottom bracket that creaks and has zero life.

    Has anyone found a better solution ?

  2. #2
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    I replaced mine with a Raceface x type pressfit, but I have the alloy frame. Not sure if that matters.

    Sent from my SAMSUNG-SM-G930A using Tapatalk

  3. #3
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    Nevermind
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  4. #4
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    Can you educate me as to how a bottom bracket doesn't or "didnt" last any longer than that? That seems premature.

  5. #5
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    Quote Originally Posted by @[email protected] View Post
    Can you educate me as to how a bottom bracket doesn't or "didnt" last any longer than that? That seems premature.
    Premature is probably right but mine was creaking enough to make me look for a better option. There doesn't seem to be a better bb option for this frame unless you choose a bb with no center sleeve (cups only).

  6. #6
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    I have a 2016 5 and I only got about 400 to 500 miles on my BB and it started creaking, the drive side bearing was a little bit sticky, I put in a Wheels Manufacturing press in, it creaked too,
    They sent me a thread together bottom bracket and it also creaked after about 20 miles, it was one of the 70 dollar threaded ones. I took it back apart and I used a bearing retainer blue Loctite, stuff dries really fast, I let it dry for a day then I got another 15 mile ride in no creaking then the next day 7 miles into my ride it started creaking again, I was so pissed I parked the bike and road my other bikes for the next two weeks,.

    Then I tried to re-tighten it and it wouldn't budge I then did a short ride and no creaking, that was on the 7th of this month 8i haven't had time to get out yet again.

    My plan if it continues to be a problem, I'm going to put in a even more expensive bottom bracket, if that doesn't work I'll look for a different kind of frame. Thus type bottom bracket is just a bad idea. Why they didn't make this size of the tubing a threaded right into the frame bottom bracket is beyond me.

  7. #7
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    Quote Originally Posted by gregmerz View Post
    I've been riding a 2017 Stache 9.6 since spring, love the bike, but the bottom bracket shell has me scratching my head. The original BB is toast after about 400 miles, so I removed it. Most BB shells are a "straight" tube, not so on the Stache. The lower seat stay has a slightly concave shape which protrudes into the bottom bracket shell just enough to make most bottom brackets with a center sleeve unusable. I tried two different Wheels Manufacturing products, the pressfit that threads together and the pure pressfit, neither will work. This frame looks to require a BB that is merely two cups without a center sleeve which is hard to find. That or I continue to use the SRAM $30 bottom bracket that creaks and has zero life.

    Has anyone found a better solution ?
    I didn't find one.....I had ordered the Wheels Manufacturing thread-together bb86/92 bottom bracket but as you figured out the scalloped seat-tube does not allow for a bb with a thick inner tube to fit. I am not sure that the hope would work but it may.....I ended up sticking another crappy plastic cup bb (sram) and now I make sure I don't ford streams high enough to soak the bottom bracket area.

  8. #8
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    Quote Originally Posted by oclvframe View Post
    I didn't find one.....I had ordered the Wheels Manufacturing thread-together bb86/92 bottom bracket but as you figured out the scalloped seat-tube does not allow for a bb with a thick inner tube to fit. I am not sure that the hope would work but it may.....I ended up sticking another crappy plastic cup bb (sram) and now I make sure I don't ford streams high enough to soak the bottom bracket area.
    I put another SRAM in as well. There has to be a better solution than this...

  9. #9
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    I'm assuming that based on your comments that this would not be able to solve the creaking problems?
    https://www.bbinfinite.com/products/...ant=9864646467

    The research I've done has said that this has almost universally solved creaking on PF BB"s! But I'm not sure that this will "press thru" on our Stache frames.

    Thanks
    CJB

  10. #10
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    Quote Originally Posted by CBaron View Post
    I'm assuming that based on your comments that this would not be able to solve the creaking problems?
    https://www.bbinfinite.com/products/...ant=9864646467

    The research I've done has said that this has almost universally solved creaking on PF BB"s! But I'm not sure that this will "press thru" on our Stache frames.

    Thanks
    CJB
    It would depend on the outside diameter of the "tube" in the middle. Given that it looks to be almost the diameter of the cups, it's doubtful. Great looking product though.

  11. #11
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    Some guys over at the Trek Stache Group on FB are pondering this same issue: BB upgrade on the carbon Staches: https://www.facebook.com/groups/178493262516578/

    Among the solutions...

    "The carbon frames don't accept 30mm BB spindles either. But I lightly sanded the inside of the frame to get the clearance I needed. It's been over a year now with no ill effects."

    "A buddy of mine uses a Chris king in his 2017 9.6 and has no issues... He uses a "Chris King Pressfit 24 Stainless" and just pulled off the plastic sheath in the middle."

    "I use the RaceFace Next SL crankset with 30mm BB spindle, and RaceFace bottom bracket. I had to not use the plastic tube." Q:"No issue with moisture getting into the back side of the bearings with it exposed?" A:"No more than moisture getting in through the outside of the bearings."
    Last edited by gchapman; 10-28-2017 at 07:11 AM.

  12. #12
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    Quote Originally Posted by chelboed View Post
    Nevermind
    Can you confirm that this Hope BB worked on your Stache? I have a new 17 frame and am looking for the correct BB. THanks!
    17 Fuel EX 9.9 (in progress)
    19 FM 279 carbon gravel
    17 Stache 29+
    14 GT Zaskar 100 9r

    https://kettleheadbrewing.com/

  13. #13
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    Still searching for the "best" bottom bracket and crankset config for a 17 Stache frame. Its new with no crank or bb ever installed, so I want to make sure its the least trouble free (dreaded creaking) setup for this frame.

    So far, I have been looking at the new SRAM DUB - GX boost crank and BB. I am also looking at Shimano XT M8000-B1 boost crank - but not really sure which BB to use. Wheels Man. has this one, but again, not sure if it will clear the indented bb shell on the Stache or not. It it does, I would go for the XT. Any feedback on a reliable and creak-free setup if appreciated. THnx....

    https://wheelsmfg.com/bottom-bracket...nks-black.html
    17 Fuel EX 9.9 (in progress)
    19 FM 279 carbon gravel
    17 Stache 29+
    14 GT Zaskar 100 9r

    https://kettleheadbrewing.com/

  14. #14
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    Just heard back from the folks at wheelsmfg. and they will have a thread together BB for the new DUB cranks "in the future". Now just need to find out WHEN this might happen and will report back, hopefully soon. Best of both worlds, imo, will be just under 30mm spindle and thread-together BB!
    17 Fuel EX 9.9 (in progress)
    19 FM 279 carbon gravel
    17 Stache 29+
    14 GT Zaskar 100 9r

    https://kettleheadbrewing.com/

  15. #15
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    I am using new DUB crankset on my 2018 carbon stache. Plastic sleeve bent a little while pushing it inside but otherwise its OK.
    From what I heard 2019 staches all use DUB.

    Sent from my SM-G955F using Tapatalk

  16. #16
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    Quote Originally Posted by foresterLV View Post
    I am using new DUB crankset on my 2018 carbon stache. Plastic sleeve bent a little while pushing it inside but otherwise its OK.
    From what I heard 2019 staches all use DUB.

    Sent from my SM-G955F using Tapatalk
    True story. The DUB crank looks good and has an over-sized aluminum spindle, but I can do without the PF bb it uses from SRAM. Wheelsmfg, Enduro, and Chris King are the ones with the thread-together BB92 size bb that I am after. Now, who can make one fastest in the DUB configuration?
    17 Fuel EX 9.9 (in progress)
    19 FM 279 carbon gravel
    17 Stache 29+
    14 GT Zaskar 100 9r

    https://kettleheadbrewing.com/

  17. #17
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    Just emailed RWC or enduroforkseals.com about this BB used on Pivot Cycles...

    https://www.enduroforkseals.com/prod...2PIVGXPSS.html

    The machined aluminum center sleeve is a special narrow design that won't interfere with the extruded supports that protrude inside the Pivot aluminum BB shells....much like the slight protrusion in the Stache bb shell.

    Am looking to install a SRAM XX1 GXP 1X11-Speed 170 168 Q-Factor crankset.
    Waiting to hear back.
    17 Fuel EX 9.9 (in progress)
    19 FM 279 carbon gravel
    17 Stache 29+
    14 GT Zaskar 100 9r

    https://kettleheadbrewing.com/

  18. #18
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    PF92 on this frame? Itíll be good to have the Wheels Mfg DUB threaded option for other Trek frames as well. Hopefully itíll be available soon...

  19. #19
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    Chris from RWC responded quickly with this:

    "Thanks for contacting us! It's interesting that the frame shots I've
    seen of the alloy and carbon 2017 frames show the obstructions you
    mention only on the carbon model. If your frame has the same
    protrusions into the BB shell area, yes, I would go with our Pivot Alloy
    specific bottom bracket. Otherwise, I would go with this one":
    https://www.enduroforkseals.com/prod...KC92GXPSS.html

    or this one:
    https://www.enduroforkseals.com/prod...-0121-GXP.html
    17 Fuel EX 9.9 (in progress)
    19 FM 279 carbon gravel
    17 Stache 29+
    14 GT Zaskar 100 9r

    https://kettleheadbrewing.com/

  20. #20
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    Quote Originally Posted by NH Mtbiker View Post
    Chris from RWC responded quickly with this:

    "Thanks for contacting us! It's interesting that the frame shots I've
    seen of the alloy and carbon 2017 frames show the obstructions you
    mention only on the carbon model. If your frame has the same
    protrusions into the BB shell area, yes, I would go with our Pivot Alloy
    specific bottom bracket. Otherwise, I would go with this one":
    https://www.enduroforkseals.com/prod...KC92GXPSS.html

    or this one:
    https://www.enduroforkseals.com/prod...-0121-GXP.html
    Did you try any of these options?

  21. #21
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    Quote Originally Posted by tahic View Post
    Did you try any of these options?
    I have chosen another route for this build, and one I know will be fine....SRAM DUB GX boost crankset with an SRAM press-fit BB to match. I will post up the build once I begin to show how I put it together.
    Attached Thumbnails Attached Thumbnails Stache bottom bracket replacement-2019-02-28-17.46.03.jpg  

    17 Fuel EX 9.9 (in progress)
    19 FM 279 carbon gravel
    17 Stache 29+
    14 GT Zaskar 100 9r

    https://kettleheadbrewing.com/

  22. #22
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    Yep,

    I used the Hope BB for my Stache carbon. It fits nicely and clears the protruding carbon bits inside the shell.

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