Heavy Duty Clutch Assembly with 1" Bore & #40 41 420 Chain Sprocket for Go Karts & Mini Bikes (Missing Hardware) Ignition Coils The throttle for eWheels EW 36 Model:Caroma P7 The throttle for eWheels EW 36 and EW 36 Elite scooters is just another element that blurs the line between electric mobility scooters and street legal motor scooters This throttle kit will require cutting and splicing of your existing wiring connections the drive sprocket is made for use with the common 40 41 420 chain size Our heavy duty clutch assembly with a 1" bore and a #40 41 420 chain sprocket for go karts and mini bikes may be just the part that you need for that perfect garage built motorsports project