13.5:1 STD Bore - -- - $279.95

Moose Racing High Performance Piston Kit

Moose piston kits are developed by CP Piston Company. They produce products for many of the leading off road and road race teams. Their involvement with team Makita Suzuki and Erion Racing along with many other factory supported teams such as Yamaha of Troy, Star Racing, MDK KTM, and Team Solitaire just to name a few has produced multiple championships over the years.

• Moose Racing is proud to introduce a high performance piston kit
• Each part has been thoroughly developed and incorporates the latest in cutting edge technology that everyone from the top professional riders to your weekend warrior demands
• Moose Pistons feature "x" style forgings for additional strength, durability, and weight reduction
• Full radius dome designs maximize quench while eliminating hot spots that promote detonation
• Each Moose Piston Kit includes a high performance piston, wrist pin, rings, circlips, and a top end gasket kit
• Replacement rings, wrist pins, and circlips are available
• Made in USA

Note: 2003-05 YFZ450 has 12.5:1 and 13.01 compression ratios, 2006-08 has 12.75:1 and 13.25:1 compression ratios.