The Primary Drive Countershaft Dome Spring Washer is a great upgrade from your stock front sprocket retaining washer. The OE washer is made from a softer material and will lose it's "spring" after a short period while the Primary Drive washer is made from a stronger steel and will last much longer. These washers are black zinc plated and laser etched for a factory look!
WARNING: Cancer and Reproductive Harm
KTM 450 SX