Praxis M24/GXP/ISIS2 Bottom Bracket Converter

The Praxis BB Converter is designed for installing Praxis M24, SRAM GXP, or ISIS2 cranks into BB30, PF30, or Specialized OSBB road frames. Its patent-pending outboard bearing design positions the cartridge bearings outside the frame for greater rigidity and eliminates frame or C-clip tolerance issues common in other conversion bottom brackets.

Press-Fit Installation

For press-fit frames, press the longer non-drive cup into the frame, then thread in the shorter drive cup. As the drive cup threads, the collet system expands to a precise limit, evenly distributing pressure for a secure, wiggle-free fit. A compressible O-ring on the non-drive side compensates for frame shell width variations, keeping bearings perfectly aligned.

Features

• For M24 spindle-based cranks only

• 24mm drive / 22mm non-drive bearings

• Patent-pending outboard bearing design

• Collet-style non-drive cup expansion for wiggle-free press

• Non-drive O-ring compensates for frame width discrepancies

Important Notes

• Not compatible with BBRight, 386EVO, or Cannondale BB30A/PF30A frames

• Frame shell must be free of obstructions (cable guides, screws)

• Use two standard BB tools with 16 external notches and 44mm ID, plus a press tool or drift for installation

• 68mm version cannot be used with MTB cranks

Specifications

• Compatible with SRAM GXP/ISIS2 cranks and Oval Concepts 400/500/700 series GXP cranks

• Forged & machined 7075 T6 aluminium

• Enduro 2437 steel cartridge bearings

• Sizes: 68mm Road

• Frame compatibility: BB30, PF30, and Specialized OSBB (OSBB sleeve required for Specialized)

This BB converter ensures rigid, precise, and durable support for 24mm spindle cranks in modern road frames.