Features:R&D developed to provide dyno-proven power gainsAsymmetric skirt design for improved wear and even loading on major thrust skirtPrecision fit ring; custom-lapped compression ring for improved power100% billet machined for superior strength-to-weight ratio and optimized fitHigh compression (14:1 for 450cc, 14.5:1 for 250cc) for maximum torque and throttle responseDome design improves flame travel to maximize air/ fuel burn efficiencyDLC-coated piston pin reduces friction and improves scuff resistanceEnhanced pin oiling for improved lubrication and reduced frictionPressure seal groove reduces ring lifting and power lossArmorGlide® skirt coating reduces friction for quieter operation, improved scuff resistancePistons include rings, pin, and circlipsSpecifications:Product Name: Piston KitSkirt Coating: ArmorGlide®Bore Size: 76.80 mmBore - Oversize: Standard / StandardCompression Ratio: 14.5:1Units: KitRiding Style: Off-RoadFitment:YearMakeModel2010HondaCRF250R2011HondaCRF250R2012HondaCRF250R2013HondaCRF250R2014HondaCRF250R2015HondaCRF250R