BSD’snew Swerve cassette hub has an ultra fast engagement made possible by its 150 tooth ratchet ring plus individually toothed pawls, the pedal gap on this hub is almost non-existent and the noise it creates is a pure buzz. The Swerve hub is perfect for tech moves where a small pedal gap really helps.The Swerve hub uses many of the same parts as the Back Street Pro hub, such as bombproof 14mm female bolts, chromo cones, a massive female axle andbad ass 6903 bearings.Hubguards available separately. Non-drive side and Drive side.Black or Polished and RHD or LHD