Designed to be a proper BB for installing SRAM™ GXP™/ISIS2 steel spindle cranks in either BB30, PF30, or Specialized’s OSBB road frames. This includes cranks from SRAM™/TRUVATIV™/QUARQ™, and Oval Concepts™. Our patent pending design keeps the cartridge bearings outboard of the frame right on SRAM spec for greater rigidity and free of frame/c-clip tolerance issues that other systems deal with.
Simply press in the longer non-drive-cup, then the shorter drive cup threads into it. As the drive cup threads in, our trademark Collet system expands to a precise limit evenly dispersing pressure for a super tight fit. With both cups connected and our collet set exactly to spec, there is no chance the bearings can come out of alignment or wiggle/walk out of the frame. This design also uses a compressible o-ring on the non-drive side cup to compensate for frame shell width discrepancies.
For SRAM™/Truvativ™/Quarq GXP™/ISIS2 steel spindle, also Oval Concepts 500/700series road cranks
Designed precisely to SRAM™ bearing stance & chain line spec
Forged & machined heat-treated 7075 T6 Aluminum
Enduro 2437 Drive /2237 Non-Drive steel bearings
For 68mm BB30 or PF30 Road frames
Not for BBRight,BB386EVO, BB86, BB92 frames
68mm version cannot be used for MTB Cranks
More Items to Consider
This product has restrictions around online purchase. Please use the View full product details link below for additional information.