motor138Buy Mid Drive Motor Kit Electric Bike Conversion QS-MOTOR138 4000W 90H 7500W Max Continuous 72V 120KPH Mid Drive Motor Conversion Kit With Wire Harness EM200-2SP[html format=html different_values=0]Performance motorcycle or kart sprockets made for the QS Motor 138 3000W 70H BLDC. All sprockets e plete with galvanized C clip.[html]