All 2-stroke models feature a CDI control unit with advanced hardware that improves the starting behavior of the engine. The ignition curves remain unchanged. IGNITION2018-07-172020-10-29https://spinnin-wheel.com/wp-content/uploads/2019/08/logo_spinnin3.jpgSpinnin-Wheel AShttps://spinnin-wheel.com/wp-content/uploads/2018/07/pho_bike_det_125-sx-2018-ignition_sall_aepi_v1.jpg200px200px