Supplied with Heavy Duty Steel freehub body 148x12mm 54 POEImproved sealing to stop dirt ingress and to reduce dragNew Labyrinth seal has zero drag for incredible freewheeling performanceNew Pawls/Springs design to increase longevity, load capacity & a reduction of drag.New step down axle design for a stiffer more durable freehubNew hub body profile for increased stiffness without adding weightFully serviceable and rebuildable with simple toolsInternal width: 30mmExternal width: 35mmProfile depth: 23mmRim ERD: 555mmRecommended tyre width: 2.4” - 2.8”Spoke count: 32Rim only weight: 27.5” - 675g