120 teeth triple wedge pawl mechanism provides positive and secure drive, a freewheel sound like no other, and micro-notch engagement gaps for that perfect pedal pick-up.SpecificationsMaterial 6061 Alloy forged hub shell,Drillings 32H,Bearings 6902 (hub) 6802/6902 (freehub),Axle 12 x 150mm thru-axle,Disc Mount IS 6-Bolt,Ratchet 120 teeth triple-wedge pawl mechanism,Freehub Body Shimano HG or Sram XD,Spoke Hole Circle Diameter (PCD) 58mm,Centre to Flange Left: 40mm, Right: 30mm,OLD 150mm,Model Ref S-DRV150,Colour Black, White or Red,Weight 307g.