THE PRAXIS CONVERSION BOTTOM BRACKET
NOT AN ADAPTOR : Our conversion BB is designed to be a proper BB for Shimano™ Hollowtech cranks in either BB30, PF30, or Specialized’s OSBB frames. Our patent pending design keeps the cartridge bearings outboard of the frame right on 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 precisely to PF spec 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.
“Praxis Works showed what we feel is the most thoroughly designed BB/PF30-to-Shimano™ bottom bracket currently on the market. The bottom bracket uses a collet system that wedges itself tightly inside the shell with even pressure throughout.”
James Huang, Bike Radar
COMING SPRING 2014
New Versions for Campy UltraTorque and SRAM GXP/ISI2!
SAY NO TO “BAND AID/SPACER” ADAPTORS
- Separate L & R adaptors can wiggle/walk out of frames
- Subject to more frame/spindle tolerance issues
- Don’t handle heavy pedal loads well
- Higher chance of creaks and noises from bad fit
BB30/PF30/OSBB to Shimano Hollowtech II
MSRP: $85.00 – LEARN MORE