Like the big KTM bikes, the 50 SX has a liquid cooling system, which even cools the crankcase. Generously sized radiators ensure outstanding heat dissipation for high reliability, even under extremely heavy duty. COOLING2018-07-182020-10-29https://spinnin-wheel.com/wp-content/uploads/2019/08/logo_spinnin3.jpgSpinnin-Wheel AShttps://spinnin-wheel.com/wp-content/uploads/2018/07/pho_bike_det_50sx-my21-cooling_sall_aepi_v1.jpg200px200px