what bottom bracket do I have/need?
rubberbullet
Posts: 36
Hi there
My TT bike is listed as having been supplied with "FSA BB30 w/ 24mm spindle reducers". Since then, I've installed a Rotor 3d+ with a power2max and had the BB bearings and/or bottom bracket replaced (I can't remember what the LBS guy did in the end). I also cannot however remember whether the BB was changed in order to fit the Rotor 3d+ (e.g. were the spindle reducers removed?).
I'm now considering buying a second hand Rotor BB30 ceramic BB from a clubmate and would appreciate knowing whether this would "work" with my existing setup or what I would need to do? I've attached a couple of (very rubbish) photos of my existing BB cups if that helps in the diagnosis... Next job for tonight is to clean the bike!
My TT bike is listed as having been supplied with "FSA BB30 w/ 24mm spindle reducers". Since then, I've installed a Rotor 3d+ with a power2max and had the BB bearings and/or bottom bracket replaced (I can't remember what the LBS guy did in the end). I also cannot however remember whether the BB was changed in order to fit the Rotor 3d+ (e.g. were the spindle reducers removed?).
I'm now considering buying a second hand Rotor BB30 ceramic BB from a clubmate and would appreciate knowing whether this would "work" with my existing setup or what I would need to do? I've attached a couple of (very rubbish) photos of my existing BB cups if that helps in the diagnosis... Next job for tonight is to clean the bike!
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Comments
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The bearings would fit the frame OK but I'm not sure I'd be that keen replacing a perfectly good set of bearings for a used second hand set - but then again IMO ceramic bearings are more about marketing than real world benefit over good quality stainless. If you just intend keeping them if/until you need a new BB I suppose it might be worthwhile but given the hassle of fitting BB's if I did need to do it I'd rather fit new bearings.FFS! Harden up and grow a pair
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