CP Piston comes complete with rings, circlips , and wristpin.

Made in the USA from the highest quality materials and with world leading technology CP Pistons are simply the best piston you'll find anywhere.

  • Fully CNC machined - Advanced machining techniques enable CP to virtually create any shape on a piston and allows CP to hold the closest tolerances in the industry.
  • Balanced to +/- 1 gram - Properly balanced pistons are essential to high horsepower and high rpm applications.
  • Accommodates high lift camshafts - CP pistons are already designed for high lift camshafts.
  • Valve reliefs fit over sized valves - CP Pistons are designed to be compatible with other internal upgrades.
  • Double forced pin oilers - Used with dual fed reservoir add twice the amount of oil from the cylinder wall to the wrist pin.
  • Accumulator Grooves - V-shaped groove machined into the second ring land to collect excess gases during combustion and alleviate ring flutter. This allows CP Pistons to provide maximum ring seal and increasing vacuum.
  • Forged from high strength 2618 Alloy - Using the highest quality materials and thoroughly researched designs ensures maximum strength and durability.
Great piston, ordered a 12.1:1 piston for my 04 honda trx450r runs great very pleased
Everything worked out great. I received the parts in a timely fashion and in perfect condition; the bike went back together flawlessly and runs great.
Ordered a CP piston for my Honda trx450er. Parts looked great and motor runs awesome
Went with 11:1 stock stroke CP piston and couldn't be happier with it. Customer service has always been top notch. Thanks for the upgrade!
Ordered stock sized CP piston for 2007 Raptor. They sent me the wrong oil rings with the piston. Other than that it seems to be a good product.
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