M30 Thru 73mm BB30/PF30 MTB Bottom Bracket

Praxis M30 Thru Bottom Bracket

The Praxis M30 Thru BB is engineered for 30mm spindle cranks, including Praxis Lyft Carbon and Doon Carbon cranks, as well as compatible models from SRAM, RaceFace/Easton Cinch, Rotor Rex/3D+, and Cane Creek eeWings. Its patent-pending design positions Enduro 6806 cartridge bearings outboard of the frame, increasing rigidity and eliminating frame and C-clip tolerance issues common in other systems.

Installation for press-fit frames is simplified: the longer non-drive cup presses into the frame, then the shorter drive cup threads in. As it threads, the Collet system expands to a precise limit, evenly distributing pressure for a secure fit. A compressible O-ring on the non-drive side compensates for frame shell width discrepancies, ensuring the bearings remain perfectly aligned.

Features

• 30mm spindle compatible only

• Patent-pending outboard bearing design

• Collet-style non-drive cup expansion prevents movement

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

Important Notes

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

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

• 73mm MTB version is not compatible with road cranks

• M30 BB installation tool required (sold separately)

• MTB mounting: ISCG05 – compatible, ST – compatible, ISCG03 – not compatible

Specifications

• For 30mm spindle cranks

• Forged and machined heat-treated 7075 T6 aluminium

• Enduro steel cartridge bearings

• 73mm MTB width

• Compatible with BB30 or PF30 frames