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KTM 525/520 SX/EXC/RFS/SMR 2000-2007

  • 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
KTM 525/520 SX/EXC/RFS/SMR 2000-2007
Std Bore: 95mm
Piston
Kit #
Disp. Bore
Size
Over
Size
Comp
Ratio
Gram
Wt (g)
Skirt
Style
Ring # Pin # Lock # Gasket # Sleeve # Footnote
221777 511cc 95mm STD 13.0:1 259 FSR JC7454
221776 543cc 98mm +3mm 13.0:1 297 FSR JC7461 M


2000-2007 525/520 SX/EXC/RFS/SMR PRO SERIES
Std Bore: 95mm
Piston
Kit #
Disp. Bore
Size
Over
Size
Comp
Ratio
Gram
Wt (g)
Skirt
Style
Ring # Pin # Lock # Gasket # Sleeve # Footnote
274173 511cc 95mm STD 12.5:1 270 FSR Call
274174 511cc 95mm STD 13.0:1 275 FSR Call
274175 511cc 95mm STD 13.5:1 279 FSR Call

- 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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