[TurnNBurn]

I'm about to assemble the electric motorcycle I have and about to mount the motor. Next step is the sprockets. I'm going with a 5:1 ratio, so I need a 70 tooth rear sprocket. I'm having a hard time finding vendors who offer 70 teeth for a 1996 Honda CBR 600 F3. Does anyone know of any vendors who make 70 tooth sprockets for motorcycles? What prices should I be looking at?