HONDA
KAWASAKI
SUZUKI
KTM
YAMAHA
2005-2008 YZ 250/WR 250F          
  • Machined from 2618 T6 high tensile forged aluminum

  • Dome/Dish features smooth flowing radii and require no deburring or preparation

  • JE designs are specifically engineered for extreme applications including professional competition

  • Pins, pin fitment, lock and rings included
  • Std Bore: 77mm
    Disp. Bore Size Over Size Piston Kit # Comp Ratio Gram Weight Skirt Style Ring # Pin # Lock # Gasket # Sleeve #
    249cc 77mm STD 247937 13.5:1 167g FSR JC3501-3031 630-1650-12-52C 630-050-MW OEM Deglaze Only
    249cc 77mm STD 274182 14.0:1 NEW FSR JC3501-3031 630-1650-12-93C 630-050-MW OEM Deglaze Only
    262cc 79mm +2mm 247939 13:1 173g FSR JC3401-3110 630-1650-12-52C 630-050-MW Call Bore & Replate
    270cc 80mm +3mm 247940 13:1 178g FSR JG7001-3150 630-1650-12-52C 630-050-MW JC7904 Sleeve


    - Denotes part # has been issued a new part #. A list referencing old part #s to their new counterparts will be available shortly.


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