Using SRAM RED 22 BB30 crankset on a BSA Frame?
05-03-16, 12:48 PM
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Using SRAM RED 22 BB30 crankset on a BSA Frame?
I have a SRAM RED 22 BB30 crankset, but I want to install it on a frame with BSA for the BB.
Are there any suggestions on how to do this if possible?
I found this product:
Race Face Cinch BSA30 Bottom Bracket at Nashbar, but I'm not sure if the SRAM BB30 crank's spindle will have correct length to merge with it.
Are there any suggestions on how to do this if possible?
I found this product:
Race Face Cinch BSA30 Bottom Bracket at Nashbar, but I'm not sure if the SRAM BB30 crank's spindle will have correct length to merge with it.
05-03-16, 01:24 PM
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If you've got a standard BB30 crankset, you're not gonna get it to fit in an English threaded bottom bracket shell. BB30 and BSA shells are both 68 mm wide. Add outboard bearings to an English shell and it'll be too wide for your BB30 crankset's spindle. You can't use inboard bearings because there wouldn't be enough clearance in a 1.37" English shell for a 30mm spindle plus bearings.
There are some 30mm standards, including some BB30 variants, that can be adapted to an English bottom bracket shell. For example, Race Face Cinch cranksets have replaceable spindles so you can adapt them to bottom bracket shells of different widths. That's why you can find Cinch bottom brackets for English shells, like the one you found at Nashbar.
There are some 30mm standards, including some BB30 variants, that can be adapted to an English bottom bracket shell. For example, Race Face Cinch cranksets have replaceable spindles so you can adapt them to bottom bracket shells of different widths. That's why you can find Cinch bottom brackets for English shells, like the one you found at Nashbar.
05-03-16, 10:27 PM
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I think this is what you need: Threaded to 30mm ABEC-3 BB - Black. This might have the same dimensions as your Nashbar unit.
Note the caveat about spindle length.
Note the caveat about spindle length.
For use with BB30 Wide 30mm diameter cranks with a spindle length of at least 104mm (BB30 Wide, BB30a, 386EVO, Rotor 3D+, SRAM BB30 Wide).
If your spindle is shorter than 104 mm, your crankset will not work in that frame.
Last edited by oldbobcat; 05-03-16 at 10:39 PM.
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