Vicarious Product Management

ultratorque makes so much sense with those toothy jointed half spindles

See my post in the home built bike stuff thread :wink:

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Same.

I have no idea what any of you are talking about.

Well, I know what BSA is

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Birmingham Small Arms [Company]; as I learned today

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Boy Scouts of America

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So T47 is good unless you want a Shimano bb because they’re cheap and work well?

I’ve gone back and forth with a few framebuilders about T47, in general they are at best tepid about it, but my sense is that if you don’t mind putting in a CK or similarly spendy bb, you’re probably not going to rue your decision, like one might with an ISP or hyperintegrated front end.

I think these are really the only options for T47 at this point?

yeah, that’s probably what’s hanging it up at this point. Let’s see what happens after 2-3 years of Trek speccing T47.5, it might help the secondary market

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Sram already makes a $50 retail T47 for the Trek standard… but DUB only because that’s how we got here.

Wheels MFG makes T47 to 24, DUB, and 30mm spindles already too. About half the price of the King but have fun replacing bearings 4x as often as Sora bottom bracket.

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I believe Race Face is still using a 24mm spindle on some cranks, but that could be just for Trek frames with BB92 type bottom brackets?

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Just a few trail cranks. Even the mid-level stuff has gone to Cinch 30mm. The Easton branded road stuff is Cinch/30 across the board.

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I had to buy a $$$ kogel bb for those rotor 3d+ cranks I got for the sscx coz bsa30. Didn’t pay retail, but still way more expensive than a bsa shimano bb.

Cane Creek has come out with a Hellbender BB for BSA30. I’ve handled a few now, seems like it may be the best option for this application.

How is that Kogel one holding up? I’ve been let down over and over by just about every option for BSA30.

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So far so good, but really haven’t had the chance to get it out in the elements coz no racing. Did a few practices with some mud and sand, but not exactly cx conditions.
I’ve had decent luck with the rotor 4130 bb for press-fit road applications. 2bbs in like 5 years?

I am really happy with the Hellbender stuff I am riding, but I can feel it on the road. Don’t care on the MTB.

I had good luck FSA PF30 bbs, I had a very large stockpile of the ceramic ones but then I sold all my pressfit bikes.

I had a vision 30mm track crank on my old T3 with a Rotor BSA30 when I was racing a lot at the track, it was fine but required some fuckery because BB386 spindles are shorter than Rotor ones.

Which one? NEO I’m guessing? Definitely feels like quite a bit of drag when they are new. How as it broken in for you? How man miles so far? The green seal Hellbender feels quite a bit more ā€œnormalā€ and didn’t feel much different when installed.

These go pretty fast on GRAVEL bikes.

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I bet, my use case was pretty ideal. Indoor velodrome.

When I worked warranty we were told to quote this ridiculous line from some SRAM users manual that said you should overhaul your PF30 BB every time you ride in the wet.