Trek Bontrager bottom bracket problem

lfoggy

Hi all,
I've got a Trek with a Bontrager chainset with a 'hollowtech' design with the new style bottom bracket where the berarings sit outside the bottom bracket shell and the axle is connected to the chainset. The non-drive side bearing is making horrible noises and needs replacing but I am having trouble working out what new bottom bracket to buy. The chainset is a Bontrager Race Lite. I'm happy replacing them myself but just need some guidance on what to order. (I know the bottom bracket shell is 68mm with an English thread.)
Is there any standardisation between Shimano and the other makes, i.e. if I buy a Shimano BB will the Bontrager chainset fit ? I can't seem to find any Bontrager brand bottom brackets for sale and I can't find any info on the Trek website either.
Any advice appreciated

gkerr4

FSA and shimano have standardised on sizes of BB axle diameter for their external BB's - the only oddball is campag with their distinctly different Ultra-torque.

I'd say it probably is the shimano std, but only removing it will tell you the answer.

it might not need replaced by the way - probably just cleaned out and re-asembled with some fresh grease.

Pooter

Bonty chainsets are just rebranded Truvativs (see the Sram website for the range) so you need a Truvativ bottom b.