Join Date: Jun 2004
Bikes: 1987 Bianchi Campione
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Originally Posted by aus10
i was wondering if most bottom brackets are universal as far as what cranksets will fit them. Im looking for a new crankset for my fixed but dont know what will fit. any help?
They are not.
The thing you first choose is your crankset. Choose wisely, the crankset and your current chainline on your rear wheel will dictate the BB specs.
BB wise there are
1) type of interface (square, octalink, external etc)
3) type of shell it is supposed to fit (english, italian etc.)
1 is controlled by your cranks
2 is controlled by your cranks and chainline
3 is controlled by your bike
You need to tell us what BB you have on your bike now and your chainline in the rear if you want to re-use it. Keep in mind new shimano square taper cart BBs (JIS) are about $25.