Designed to be a proper BB for installing M30 spindle based cranks in either BB30, PF30, or Specialized’s 2014-2015 “OSBB” frames. Our patent pending design keeps the cartridge bearings outboard of the frame right on Shimano™ 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.

Specification

• This BB is for Shimano™ Hollowtech II steel spindle road cranks only

• Forged & machined heat-treated 7075 T6 Aluminum

• Enduro 2437 Drive /2237ER Non-Drive steel bearings

• For 68mm BB30 or PF30 and Specialized Road frames

• Not for BB30a, BBRight, BB386EVO, BB86, BB92 frames

• This version for Shimano™ Hollowtech II steel spindle cranks only

• Made with Enduro bearings and high grade grease

• Model: Shimano road

• Press tool, and 2 Praxis M30 BB tools required for installation

• Interface: 24mm Shimano Road spindle

• Shell: BB30/PF30 (includes sleeve for BB30 installation)

• Width: 68mm

• Color: black