DT Swiss RWS MTB Boost Thru AxleThe DT Swiss RWS MTB Boost Thru Axle optimises the DT Swiss wheel/hub to frame system. This unique to DT Swiss axle mounting system is stiffer, safer and more user friendly than most other options available on the market.Features:Material: Forged Aluminium Weight: 72gBuy DT Swiss Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.