In order to balance the mass-forces the KTM 350 SX-F produces, the engine is fitted with a multifunctional counter balance shaft. It effectively reduces vibration, while driving the water pump and timing chain. BALANCER SHAFT2018-07-172020-10-29https://spinnin-wheel.com/wp-content/uploads/2019/08/logo_spinnin3.jpgSpinnin-Wheel AShttps://spinnin-wheel.com/wp-content/uploads/2018/07/pho_bike_det_250-sx-f-2018-counterbalanceshaft_sall_aepi_v1.jpg200px200px