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CONVERSION BB

Praxis Works Conversion Bottom Brackets

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.

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“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



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Our unique collet system also greatly reduces the chances for creaking and other unwanted noises associated with the lesser “Band Aid/Spacer” type adaptors in the market. Available in either 68mm for road, or 73mm for MTB, the Praxis Works Conversion BB is the most rock-solid Conversion BB for BB/PF30 frames. Click here to see the professional teams racing on the Conversion BB.

COMING LATE SPRING 2014
New Versions for Campy UltraTorque and SRAM GXP/ISI2!

SAY NO TO “BAND AID/SPACER” ADAPTORS

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  • 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


SHIMANO

BB30/PF30/OSBB to Shimano Hollowtech II

Praxis Works 68mm BB30/PF30

MSRP: $85.00 – LEARN MORE

SRAM

BB30/PF30/OSBB to SRAM GXP/ISIS2

Praxis Works 68mm BB30/PF30

COMING LATE SPRING 2014!

Stay tuned…

CAMPAGNOLO

BB30/PF30/OSBB to Campagnolo UltraTorque

Praxis Works ROAD 61/68mm OSBB

COMING LATE SPRING 2014!

Stay tuned…

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