ADAPTER

SHIMANO ULTEGRA - Bottom Bracket - Press Fit - HOLLOWTECH II - 86.5 mm shell width

With reliable SHIMANO bearings and seals, the SHIMANO ULTEGRA bottom bracket has a long service life.

Bottom bracket BB-ALM92/CZ mtb BB92 24mm cr-mo steel

BB1 ITA

You've decided that your bike's performance features could be enhanced with components selected á la carte — and that you should be able to accomplish this despite the spawn of deviant bottom bracket "standards" that have created component compatibility issues at your local bike shop. Conventional threaded bottom brackets like your Italian-threaded BB shell shouldn't foil plans to upgrade your ride. ROTOR conceived its Universal Bottom Bracket (UBB) concept to eliminate the complicated bottom bracket/crank compatibility challenge that has increasingly frustrated the mechanics at your LBS. The BB1 ITA is the "yes" component to "Is this compatible with my Italian-threaded BB shell with a 24mm axle?"

This steel bottom bracket allows for use of FSA mountain bike cranks with MegaExo 24 mm axles in BB30 bottom bracket housings.

Pressfit bottom bracket BB92 for FSA aluminium cranks with 19 mm axle (e.g. Gamma Drive, Omega).

Shimano Dura Ace BB-R9100 Road Bicycle Bottom Bracket BC1.37 x24 68mm Road