Boost for clincher tires, Boost for thru-axle, front wheel 15 x 110 mm Boost, rear wheel 12 x 148 mm Boost, suitable for Shimano 9-/10-/11-/12-speed (HG), SRAM 10-/11-/12-speed, for E-bike with 550 Nm, 150 kg bike + rider, black Rim 30 mm, rim height 21 mm, aluminum with asymmetric profile. Front and rear wheel: with 32 round spokes. Spokes: Inox black, crossed. Hubs: forged aluminum 7075 T6, with 6-bolt mount. Wheel weight: front wheel 1045 g (29"), rear wheel 1250 g (29") Thru-axle 12 mm, thru-axle 15 mm Spoke diameter 2.00 mm Freehub body HG Main color black Installation width 110.0 mm, 148.0 mm Application range MTB Hub color black Spoke color black Rim color black Spoke length 291/290 mm Spoke length 2 290/291 mm Spoke material Stainless steel Wheelset mounting Brake system for disc brake, 6-bolt Shifting system 9-speed, 10-speed, 11-speed, 12-speed Rim type tubeless ready Type/kind Item Wheel size 29 "