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Stuck in the middle of BB30 and standard threaded english shell? No problem

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Stuck in the middle of BB30 and standard threaded english shell? No problem

Old 04-03-13, 10:01 AM
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Stuck in the middle of BB30 and standard threaded english shell? No problem

I'm using one of these on my track frame which has a threaded BB. Let's me run my BB30 Rotor SRM. It'll work with any English threaded BB and standard BB30 crankset.

Didn't realize they had this out there until a friend clued me in while we were discussing PM's.

This just in:

Originally Posted by primov8
Not all BB30 cranksets. Rotor 3D+, 3DF, Sram S900 series BB30 cranksets have longer spindles than standard BB30 cranksets, which is why they work on 68mm threaded bb(with bsa bb30 bb cups) and cervelo's bbright framesets.
I stand corrected on it's universal BB30 application.

Last edited by Racer Ex; 04-03-13 at 10:40 AM.
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Old 04-03-13, 10:13 AM
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I'm interested, since I've got an unused take-off BB30 FSA crankset. Have you tried this with any other BB30 crankset? From their website:

30 mm external bearing BB which allow the installation of 3D+, 3DF, FLOW, and POWER cranks in classic BSA threaded frames. Includes installation/removal tool.

**Will not work with BB30 specific cranksets.
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Old 04-03-13, 10:13 AM
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Are you sure it works with any BB30 crankset and not just the Rotor 3D+ crankset?
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Old 04-03-13, 10:42 AM
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I thought BB30 crank spindles were too short for BSA bottom brackets.
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Old 04-03-13, 10:56 AM
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Compatibility issues aside, BB30 adapters tend to click, creak, and generally make noise, in case you guys didn't know. My buddy runs one and under load, you can hear it from a mile away. That might steer you away from using an adapter...
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Old 04-03-13, 11:00 AM
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Some BB30 crank spindles are too short for this.

And in some cases, like with three-piece cranks, getting a longer spindle to use this BB results in a pretty messed up chainline.
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Old 04-03-13, 11:03 AM
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Originally Posted by Roadie607
Compatibility issues aside, BB30 adapters tend to click, creak, and generally make noise, in case you guys didn't know. My buddy runs one and under load, you can hear it from a mile away. That might steer you away from using an adapter...
This isn't an adapter.
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Old 04-03-13, 11:19 AM
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I have a Quarq BB30 for my Litespeed, then I have two of those Rotor BB's, one for the threaded BB on my TT bike, and one for the threaded BB on my Ritchey Breakaway. Works like a charm.
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Old 04-03-13, 07:58 PM
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Originally Posted by topflightpro
Some BB30 crank spindles are too short for this.

And in some cases, like with three-piece cranks, getting a longer spindle to use this BB results in a pretty messed up chainline.
BB30 frequently creaks on its own without an adapter, doesn't seem like much of a concern to me. Take it apart and grease it every couple months.
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Old 04-03-13, 08:27 PM
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there's nothing wrong with square taper.
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Old 04-03-13, 08:28 PM
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My old Campy cup and cone with loose bearings never creaked. Not. Ever.
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Old 04-03-13, 09:52 PM
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What about the other direction? Is there a way to use a standard BSA in a BB30 frame? There must be some sort of adaptor, right?
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Old 04-03-13, 10:12 PM
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Originally Posted by caloso
What about the other direction? Is there a way to use a standard BSA in a BB30 frame? There must be some sort of adaptor, right?
Tons.
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Old 04-04-13, 05:33 AM
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Originally Posted by caloso
What about the other direction? Is there a way to use a standard BSA in a BB30 frame? There must be some sort of adaptor, right?
Wheels Mfg.
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Old 04-04-13, 06:18 AM
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Originally Posted by shovelhd
Wheels Mfg.
I used one of those to run a Sram Red BSA crank on my BB30 frame and never had an issue with it. It worked quite well (no creaking).
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Old 04-04-13, 10:11 AM
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Great. I didn't want to have to get a new Quarq if I got a BB30 frameset.
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Old 04-05-13, 09:01 AM
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Any issues with bearing wear?
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Old 04-05-13, 09:09 AM
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Originally Posted by khill
Any issues with bearing wear?
FWIW a lot of the Specialized 2nd and 3rd level bikes use 25mm cranks and adapters in a BB30 shell.
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