Large tread blocks and additional siping delivers great traction no-matter what the weather throws at it

Piston Oversize: 3

31401-18G00

The double bubble design reduces wind pressure on the rider and contributes to increased stability at high speeds

WISECO ENG KT WISCO YZ250F 12-13 WPWR140-103 polaris-scrambler-850-850-2014-esi6345386 Large tread blocks and additionalKit includes a premium Forged piston kit with stock compression ratio and a high quality cam chain, top and bottom end components are included for a complete engine rebuild, crankshaft and rod assembly designed and inspected to asset Bracket are Also Included in the Kit