Specialized 1.2 SL Custom Rx Trail Tuned Motor 50Nm SL1-320, fully integrated, 320Wh Mixed wheel configuration: 29 inch front 27.5 inch Front Tyre: Butcher, GRID TRAIL casing, GRIPTON® T9 compound, 2BlissReady, 29 x 2.3 Rear Tyre: Eliminator, GRID TRAIL casing, GRIPTON® T7 compound, 2BlissReady, 27.5 x 2.3 Rear Derailleur: SRAM GX Eagle, 12speed Shifters: SRAM GX, trigger, 12-speed