Features - Shimano HB-TC500-15-B Center-Lock Boost 15x110mm Simple setup and reliable trail performance; Easy disc brake rotor installation with spline mount and lock ring; Stiff & lightweight 15mm E-THRU skewer system; Labyrinth & Contact Sealing; O.L.D. 110mm; 28 spoke compatible; Product features Use: MTB, E-Bike; Model: HB-TC500-15-B; Brake type: Center-Lock Disc; P.C.D.: left 44mm / right 44mm; Flange diameter: left 52.8mm / right 52.8mm; Flange distance: 70.2mm; Offset: 5.3mm; Hub: Labyrinth and contact seals; Type: E-Thru Axle Boost; Axle length: 15x110mm; EHBTC50015BC;