18 tooth clutch vs 15 tooth clutch / Tillotson 212 / Baja racer Minibike

18 tooth clutch vs 15 tooth clutch / Tillotson 212 / Baja racer Installed both an 18 and a 15 tooth clutch on the Tillotson 212 engine on the Baja racer minibike to see which clutch would perform the best with a 70 tooth rear sprocket.