Praxis Conv BB, Shimano Road
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Praxis Conv BB, Shimano Road Praxis Conv BB, Shimano Road

Praxis Conv BB, Shimano Road

Product Code PX-68-3001
Other products by Praxis
Designed to be a proper BB for installing Shimano™ Hollowtech II steel spindle cranks in either BB30, PF30, or Specialized’s 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.

Key Features
  • This version for Shimano™ Hollowtech II steel spindle road cranks only.
  • Designed precisely to Shimano bearing stance & chain line spec.
  • Forged & machined heat-treated 7075 T6 Aluminum
  • For 68MM BB30, PF30, and Specialized Road frames
  • Not for BBRight, BB386EVO, BB86, BB92 frames
  • Steel version: Enduro 2437
  • Ceramic Version: Enduro 2437 Angular contact, Grade5 balls, ABEC5 Assembly
  • 68mm version cannot be used for MTB Cranks

NOTE: Price applies to Online sales only, pricing may differ in our Retail store.
  • BB30/PF30  $134.40 | In-store $158.00
  • OSBB  $134.40 | In-store $158.00
  • BB30/PF30 Ceramic  $293.60 | In-store $345.00
  • OSBB Ceramic  $293.60 | In-store $345.00

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