M30 Thru BB
The Praxis M30 Thru BB is designed to be a proper bottom bracket (BB) for installing the Praxis Lyft Carbon Cranks and Doon Carbon Cranks. Also good for other brand 30mm cranks like SRAM, RaceFace/Easton “Cinch” cranks, Rotor Rex/3D+ cranks, and CaneCreek eeWings. The Praxis patent pending design keeps the Enduro 6806 cartridge bearings outboard of the frame for greater rigidity and free of frame/c-clip tolerance issues that other systems deal with.
For Press Fit Options...
Simply press in the longer non-drive-cup, then thread the shorter Drive cup into it. As the drive cup threads in, the trademark Collet system expands to a precise limit evenly dispersing pressure for a super tight fit. With both cups connected and the 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.
Features
- For 30mm spindle based cranks only.
- Patent Pending Outboard Bearing Design.
- “Collet” style non-drive cup expansion for wiggle-free press.
- Non-Drive O-Ring compensates for frame width discrepancies.
- Not for BBRight, 386EVO or Cannondale BB30A/PF30A frames.
- Frame shell cannot have any inner shell obstructions (like cable guides/screws) that prevent BB from installing.
- 73mm MTB version cannot be used for road cranks.
- M30 BB tool for installation - sold separately.
- MTB Guides - ISCG05 Good, ST Mounted Good, ISCG03 Not Good.
- Praxis Works warrants components to be free from defects in materials or workmanship for a period of 2 years after original purchase. However, there are limitations as “nothing lasts forever” so please read our







