The Praxis Works M30 bottom bracket converter is designed to be a proper bottom bracket BB for installing Praxis M30 cranks (with a 30/28mm stepped spindle) in either BB30, PF30, or Specialized’s OSBB road frames. High-grade Enduro 2437 bearings are fully sealed and are a fantastic replacement BB for your Praxis cranks. Our patent pending design keeps the cartridge bearings outboard of the frame right on for greater rigidity and free of frame/c-clip tolerance issues that other conversion bb systems deal with.
Simply press in the longer non-drive-cup, then the shorter drive cup threads into it. As the drive cup threads in, our trademark Collet system expands to a precise limit evenly dispersing pressure for a super tight fit. With both cups connected and our collet set exactly to spec, there is no chance the bearings can come out of alignment or wiggle/walk out of the frame. This bb converter design also uses a compressible o-ring on the non-drive side cup to compensate for frame shell width discrepancies.
TECHNOLOGY
• For M30 spindle based cranks only.
• 30mm Drive bearing / 28mm Non-Drive bearing.
• Patent Pending Outboard Bearing Design.
• “Collet” style non-drive cup expansion for wiggle-free press.
• Non-Drive O-Ring compensates for frame width discrepancies.
VIP NOTES
• 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.
• 68mm road version cannot be used for MTB Cranks.
• M30 BB tool for installation - sold separately.
WARRANTY
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
• For M30 spindle based cranks only.
• Forged & machined heat-treated 7075 T6 Aluminium.
• Enduro 2437 steel cartridge bearings.
• 68mm Road.
• For BB30, PF30 and Specialized Road OSBB Aluminium frames.
• For Specialized OSBB please purchase the 68mm OSBB sleeve.