Kalama 53.95mm Piston Kit for Yamaha YZ125 1997 1998 1999 2000 2001

Bore Size: 53.95mm

OE P/N: 4XM-11631-20-D0  

              4XM-11631-30-D0

              4XM-11631-20-C0

              4XM-11631-30-C0

Item fits: Yamaha YZ 125 97~01

Features:

★ Made In Taiwan

★ A390 aluminum alloy 

★ Hard Anodize on crown and side for ignition and combustion resistance

★ MoS2 Skirt coating reduce friction and improve wear

★ RIK Piston Ring: most well-know manufacturer in the industry

★ Cast piston has super-high silicone content for additional strength