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Merlin Cycles£43.95Visit shop Praxis Black M30 Thru Bsa Bottom Bracket - / English (Bsa)
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The Praxisworks M30 Thru BSA Bottom Bracket is designed for mountain bike enthusiasts using cranksets like Praxis Lyft, Race Face CINCH, Rotor REX, and Cane Creek eeWings. Its primary benefit is the patent-pending collet system that ensures superior rigidity and eliminates bearing misalignment by placing bearings outboard of the frame. While it offers excellent durability and precision, users should be aware that it requires specific Praxis M30 installation tools, making it less accessible for home mechanics who lack the proprietary hardware.
| Model Part Number | PR-68-4202 |
|---|---|
| Brand | Praxisworks |
No, this bottom bracket is specifically designed for M30 spindles used by Praxis, Race Face CINCH, Rotor REX, and Cane Creek eeWings.
No, you must use the specific Praxis M30 installation tool to ensure the collet is expanded and seated correctly.
No, this specific model is designed for 68mm and 73mm BSA threaded shells.
Placing the bearings outboard increases the stance width of the support, which enhances drivetrain rigidity and improves power transfer.
Ensure the collet system is fully engaged. If it remains loose, check your frame shell width to ensure it falls within the 68/73mm standard.
Ensure the collet is tightened to the correct torque specification and verify that the frame threads were cleaned and greased properly during installation.
Check that the non-drive side O-ring is seated correctly and verify that the spindle spacers are configured according to your specific crankset requirements.
To install this unit, ensure your frame features a standard English (BSA) threaded shell measuring 68mm or 73mm. You must use the dedicated Praxis M30 bottom bracket tool to properly tighten the collet system; attempting to use standard tools can damage the interface. When installing, clean the threads thoroughly and apply a light coat of high-quality bike grease. For long-term care, avoid high-pressure water washing directly at the bearing seals to prevent contamination. Regularly check for any play in the crank arms, though the collet design is specifically built to remain secure under heavy use.
