Cylinder Works 21-23 WR 450 F/20-22 YZ 450 F/21-23 YZ 450 FX Standard Bore Cylinder - CW20014

Cylinder Works Standard Bore Kit

Vertex Pistons Outer Clutch Gasket Kit

Uni Filter 20-23 Yamaha YZ 250-450 F/FX / WR 250-450 F Air Filter

Athena has been constantly investing in cylinder aftermarket replacement parts for more than ten years, to improve their production and performance. All the cylinders are entirely engineered in Italy...

Hot Cams 16-18 WR 450 F/18-19 YZ 450 F/16-19 YZ 450 FX Exhaust Camshaft - Stage 1