ISIS to BB30

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Feltflyer

New Member
Hi all need some help with this one I'm upgrading my chainset from ISIS to BB30 I have a new FSA K-Force light setup and need advise on what needs done to fit the new ceramic press fit bearings as the Isis is threaded what needs to be done before I fit the BB30
 

boydj

Legendary Member
Location
Paisley
I don't think that this can be done. The bottom bracket needs to be compatible with the bearings - width, press-fit inner surface etc. See here - http://www.fullspeedahead.com/technology/1/BB30
 
Why? BB30 is fraught with problems IME, all be it not as many now as the early days, however, BB30 still remains the answer to a problem that simple never existed.

I converted my BB30 bike to Hollowtech II after continuous creaking issues, and it's been perfect ever since.

If your BB shell is 68mm you can fit Hollowtech bearing cups and a compatible chainset, but you won't be able to fit BB30 as it requires a 30mm shell IIRC.
 
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