Needing assistance with a Rear Axle Sprocket for a 1 1/4" axle on my Go Kart/Shifter Kart. The sprocket needs to be #428 chain with 20-28 teeth. Preferably with a 1/4" keyway on a 1 1/4" bore such as a Type B sprocket. The sprocket will connect to a QS138 70H V3 14 tooth motor sprocket...