Praxis Works Bottom Bracket – Road | Ceramic | Shimano BB30/OSBB – BB42-68-24 / PF46-61.5-24

The Praxis Works bottom bracket cups for BB30 frames (42 mm shell diameter / 68 mm shell width) are an excellent upgrade for road bikes with Shimano drivetrain. Equipped with high-quality, fully sealed Enduro Bearings 2437 ceramic ball bearings of precision grade ABEC 5.

The patented system with the orange elastomer ring ensures a tight fit of the bottom bracket in the frame. During installation, the elastomer expands to a precise, machined limit and distributes the pressure evenly in the frame shell. The optimized fit not only increases stiffness, but also helps to eliminate the usual tolerance problems. The system is used with all BB30, PF30 and BBRight bottom brackets from Praxis Works.

complete bottom bracket incl. sleeves for use on Specialized OSBB frames (46 mm shell diameter / 61.5 mm shell width)

Not suitable for use with MTB cranks. Not compatible with BB30a or PF30a frames (Cannondale). Two bottom bracket tools (Shimano 16-Notch), a press-in tool, a cup extractor, waterproof grease and an anti-seize assembly paste are required for installation (each sold separately).