This slipper shaft set is an essential drivetrain component designed for the Kyosho MX-01 RC motocross motorcycle, playing a critical role in the vehicle's slipper clutch assembly. Crafted from durable hardened steel, it ensures robust performance and longevity, effectively protecting the transmission from sudden impacts and shock loads during aggressive driving or challenging landings. Replacing a worn or damaged slipper shaft with this genuine part restores optimal slipper clutch function, providing smoother power delivery to the rear wheel and safeguarding internal gears from premature wear, thereby extending the lifespan of your RC bike.