M30 Thru BB86/BB90/BB92 MTB Bottom Bracket

Praxis M30 Thru Bottom Bracket

The Praxis M30 Thru BB is designed for installing Praxis Lyft Carbon, RaceFace Cinch, Rotor REX MTB, or CaneCreek eeWings cranks. Its patent-pending outboard bearing design positions the Enduro 6806 cartridge bearings outside the frame for greater rigidity and eliminates tolerance issues common with other bottom bracket systems.

Press-Fit Installation

• Press the longer non-drive cup into the frame.

• Thread in the shorter drive cup. As it threads, the collet system expands to a precise limit, evenly dispersing pressure for a secure, wiggle-free fit.

• A compressible O-ring on the non-drive side compensates for frame shell width differences.

• Compatible with BB30, PF30, BB86, BB90, and BB92 frames. BB92 guide is required for BB92 frames.

English Threaded / BSA Installation

• Fits English Threaded / BSA frames

• Requires Praxis M30 BB tools (sold separately)

• Works with ISCG05 & ST Mounted MTB guides; not compatible with ISCG03

Specifications

• Crank Compatibility: Praxis Lyft Carbon, RaceFace Cinch, Rotor REX MTB, CaneCreek eeWings

• Bearing Size: 30mm drive & 30mm non-drive

• Bearings: Enduro 6806 steel

• Material: Forged & machined 7075 T6 aluminium

• Shell Widths:

  • Road BB86: 68mm, spindle 103mm+

  • MTB BB90/92: 73mm, spindle 108mm+

• Weight: Varies by configuration

• Installation Tools: Praxis M30 BB tools required; BB92 guide needed for BB92

Notes

• 68mm Road version cannot be used with MTB cranks

• MTB guides: ISCG05 & ST Mounted OK, ISCG03 Not OK

• BB86/92 frames should be checked with the frame gauge before fitting

This bottom bracket provides rigid, precise, and durable support for 30mm spindle cranks across both English threaded and press-fit frame standards.