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Wiseco Racer Elite CR Series Piston Kit - 4 Stroke

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Wiseco Racer Elite CR Series Piston Kit - 4 Stroke


  • Developed to provide dyno-proven power gains
  • Asymmetric skirt design for improved wear and even loading on major thrust skirt
  • Custom-lapped compression ring for improved power
  • 100% billet machined for superior strength-to-weight ratio and optimized fit
  • High compression (14:1 for 450cc, 14.5:1 for 250cc) for maximum torque and throttle response
  • Dome design improves flame travel to maximize air/fuel burn efficiency
  • DLC-coated piston pin reduces friction and improves scuff resistance
  • Enhanced pin oiling for improved lubrication and reduced friction
  • Pressure seal groove reduces ring lifting and power loss
  • ArmorGlide® skirt coating reduces friction for quieter operation, improved scuff resistance
  • Pistons include rings, pin, and circlips
  • Made in the USA


  • Piston
  • Rings
  • Wrist pin
  • Circlips

Note: Images are for reference only, actual kit will vary per make and model.

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Fitment Notes & Exceptions
  • Always inspect and measure your cylinder before ordering
  • Any kit selection other than stock bore size will require cylinder boring and Nikasil plating or a new cylinder sleeve
  • Premium pump fuel required for high-compression ratios up to 13.5:1
  • Increased octane (race fuel) is required for compression ratios over 13.5:1

This Product Fits:

CRF250R 2010-2015
CRF250R 2016-2017
CRF250R 2018-2019
CRF250RX 2019
CRF450R 2013-2016
CRF450R 2017-2020
CRF450R Works Edition 2019
CRF450RX 2017-2019
FC250 2016-2020
FC450 2014-2020
FS450 2019
FX450 2017-2019
250 SX-F 2016-2020
450 SX-F 2013-2019
KX250 2019
KX250F 2015-2016
KX250F 2017-2019
KX450F 2013-2018
RMX450Z 2010-2019
RMZ250 2010-2021
RMZ450 2013-2019
RMZ450 2008-2012
WR250F 2018-2019
WR450F 2016-2018
YZ250F 2014-2015
YZ250F 2016-2018
YZ250FX 2017-2019
YZ450F 2010-2013
YZ450F 2014-2017
YZ450FX 2016-2018
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