FSA Ultimax Chromoly BB JIS 68x107

The GXP system does not rely on a lateral load to adjust the bearing clearance as other systems do, but the left bearing is clamped between the bottom bracket axle and the left crank arm. This allows the right-hand bearing to move axially freely on the bottom bracket axle. This prevents premature bearing wear.

386EVO crank into a PF30 or BB30 frame

200-3204
MW258A Washer Anodized Black

BB1 RD BSA

You think that your bike's performance features could be enhanced with components selected á la carte at your local bike shop — and that you should be able to accomplish this despite the spawn of deviant bottom bracket "standards" that have created component compatibility issues. Conventional threaded bottom brackets like your English-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 BSA is the "yes" component to "Is this compatible with my English-threaded BB shell with a 24mm axle?"