Riot drive for Exway X1 Max longboard. Rated power 756W*2, torque 7 Nm*2. Trucky Exway Trist 8". The engine turns the belt that drives the wheels. The drive is compatible with belt lengths of 235, 255 and 280 mm. Compatible with 28T, 36T and 44T pulleys. Recommended wheel sizes: 76, 80, 85, 90, 105, 120 mm.