My Gios Torino carbon bike uses a Record bottom bracket, but those are so hard to get in Nigeria where I live. I've seen a Shimano bottom bracket but I don't know if it will match with the threading of my bike. I've not tried it but I've not been able to use my bike for some time. Buying a new Record bb would be very expensive, and is not in my state which means I have to order it either on Ebay or Amazon and pay international shipping.

Will the Shimano work? That would make me so happy

  • Using capitals and proper sentences would make the question much more readable. – ojs Feb 11 '18 at 9:24
  • 3
    @ojs Not every English speaker in the world speaks the same English as we do in the west. "Proper" is relative. – David Richerby Feb 11 '18 at 12:23

You don't indicate whether you've got a square taper (older) Record BB or one of the Campagnolo outboard bearing systems (Ultra Torque or Power Torque).

If it's an outboard Campy BB and crank, the spindle is a larger diameter than Shimano (25mm as opposed to 24mm), among probably other issues, so it will not work.

If it's square taper, Campy uses a different taper geometry at the taper called ISO, as opposed to the JIS standard that almost all other cranks use. More info on this here. As that page indicates, while there is some risk associated with having less spindle engagement, a lot of people successfully mix and match JIS BBs onto ISO cranks without issues. Ideally you get a spindle that's about 9mm shorter than whatever ISO spindle gave you correct chainline before, because the cranks each sit on the spindle about 4.5mm out from before. Note that the good way of figuring this out is before taking anything apart, first observe what chainline the old BB is giving you and whether there would be any issues with making it better if it's not already perfect, then pull the cranks and see what spindle length you've got.

Your Gios may have an Italian BB shell. This isn't a big issue but if so you'll likely need to order the new BB. Usually the BB is marked somewhere with its thread pitch, 36mm x 24 tpi for Italian.

| improve this answer | |

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.