Cannondale Caad12 BB30a

[Peeza21]

I have a 2017 caad 12 with a BB30a

I have been offered the below cranks in bb30 and was wondering if they would fit? I am very untechnically gifted, so before committing I'd hope the experts on here could help. Thanks

[Ltyarbro42]

Short answer: no they won't. The spindle is too short.

[goodboyr]

Short answer: no they won't. The spindle is too short.

Really?? I think you are wrong......

http://weightweenies.starbike.com/forum/viewtopic.php?f=3&t=144719

[Ltyarbro42]

BB30A is wider than BB30. I made the same mistake OP is about to make. I bought a power meter with BB30 and I can confirm, it does NOT fit.

[goodboyr]

BB30A is wider than BB30. I made the same mistake OP is about to make. I bought a power meter with BB30 and I can confirm, it does NOT fit.

He's not talking about a power meter. He's got a red bb30 crank. You remove the preload adjuster from these cranks and use a wave washer to gain the extra width. Read the thread......

[Ltyarbro42]

No shit? I mistakenly got a crank based power meter for a BB30 when the BB30A standard was new. It did not fit. Period. Wave washers do nothing to lengthen a spindle.

You can put a BB30A crank to a BB30 bottom bracket. Not vice versa.

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[AZR3]

So the new sram red crank with the hidden bolt fits BB30a, since cannondale specs that on the eTap Hi-Mod, does anyone have spindle length comparing the old and new?

[raffit78]

104 mm (old) and 109mm (new) are the two lengths of spindles


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[AZR3]

^^thats the lengths of the old/new Red BB30 cranks? Couldn't find anything difinative on google.

[srshaw]

I doubt it would fit, spindle not long enough. SRAM Force funnily enough has a longer spindle (or so they recon on the cervelo forum) and would fit. No help to the op though.

[deek]

This crank will not fit on BB30A. The newer version with the hidden bolt will if you remove the threaded preload adjuster and replace it with a wave washer and plastic shims.

[TarugoKing]

Wondering if you are replacing a HollowGram Si on your CAAD12? If yes, why would you?

[raffit78]

^^thats the lengths of the old/new Red BB30 cranks? Couldn't find anything difinative on google.

I apologize I was referring to the hollowgram spindle sizes.



These have two sizes 104 (older) 109mm (newer)


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