The CN502M connecting rod kit is for the famous Yamaha YZ450F engine. We apply nickel-contained chromoly steel, a higher strength material, for our con-rods. The rod can bear higher loading and higher RPM environment. 

Application: 

Yamaha 2003-2005 YZ 450F

Yamaha 2004-2006 WR 450F

Big-end Width (mm): 20

Small-end Width (mm): 18

Big-end Bore (mm): 42

Small-end Bore (mm): 18

Center-to-center (mm): 103.5

Pin Diameter (mm): 34

Pin Length (mm): 60.8

Big-end Bearing (mm): 34*42*20

Small-end Bearing (mm): Bush

Washer Thickness (mm): N/A