Ns bikes rotary front disc hubthis sturdy and reliable hub runs on smooth sealed bearings and includes two sets of end caps so you can use it with a 15mm or 20mm axle this hub is also disc brake compatible and weighs less than 200g which is impressive for a tough freestyle hub features6061 alloy body 7075 hardware2x 6805 sealed bearingsdisc brake compatible 6 boltaxle options 15x100mm and 20x110mm spokes 32hole drilling onlyweight 195gbuy ns bikes wheels tyres from chain reaction cycl