Isis bottom bracket

[Blue Hills]

Thanks Recordace - and gain for the history of BBs - I don't have that many bikes (honest) but I already have bikes with 4 different bottom bracket types. Tend to think the Ridgeback that got me back into cycling in 97 (and the first bike I rather than my dad bought) is probably best equipped - square taper.

Recently got a Hewitt tourer which has external bearings - half think I may change it to square taper when the drive train gets worn.

 

[RecordAceFromNew]

You can get ISIS BBs that are specially built to last, like this by a) using needle bearings and b) cutting into the over-sized spindle for the inner ball race (IRB also do this). But the SKF are around £80 a throw, and heavier than old Shimano UN7x hollow spindle square tapers.