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2004-2005 TRX 450R

  • Machined from 2618 T6 high tensile forged aluminum for high durbility and tempature controlled diamond cut skirts for a precise fit

  • Pistons availble in our standard forgings, or in our Pro Series designs

  • Pro Series pistons are manufactured using F-1 style braced forgings with dedicated embossed valve pockets to reduce weight with no loss in strength

  • Pro Series pistons are available in the orignial 3 ring design, or choose the 2 ring design for less friction and reduced weight. All Pro-Series pistons for this 2004-2005 model have taller deck heights for optimized squish

  • Pins, pin fitment, wire locks and rings included

2004-2005 TRX 450R
Std Bore: 94mm
Piston
Kit #
Disp. Bore
Size
Over
Size
Comp
Ratio
Gram
Wt (g)
Skirt
Style
Ring # Pin # Lock # Gasket # Sleeve # Footnote
221767 449cc 94mm STD 13.0:1 317 FSR JG1101-3701 827-2050-15-93C 827-063-MW JC3043
262285 449cc 94mm STD 12:01 300 FSR JG1101-3701 827-2050-15-93C 827-063-MW JC3043
221771 449cc 94mm STD 11.5:1 311 FSR JG1101-3701 827-2050-15-93C 827-063-MW JC3043
221770 469cc 96mm +2mm 13.0:1 334 FSR JG5001-3780 827-2050-15-93C 827-063-MW JC3080
221834 500cc 99mm +5mm 12.0:1 305 FSR JG5001-3898 827-2050-15-93C 827-063-MW JC3079


2004-2005 TRX 450R PRO Series (3 Ring)
Std Bore: 94mm
Piston
Kit #
Disp. Bore
Size
Over
Size
Comp
Ratio
Gram
Wt (g)
Skirt
Style
Ring # Pin # Lock # Gasket # Sleeve # Footnote
284679 449cc 94mm STD 12.5:1 279 FSR JG1101-3701 827-2050-15-93C 827-050-MW JC3043 5
284680 449cc 94mm STD 13.0:1 290 FSR JG1101-3701 827-2050-15-93C 827-050-MW JC3043 5
284681 449cc 94mm STD 13.8:1 297 FSR JG1101-3701 827-2050-15-93C 827-050-MW JC3043 5


2004-2005 TRX 450R PRO Series (2 Ring)
Std Bore: 94mm
Piston
Kit #
Disp. Bore
Size
Over
Size
Comp
Ratio
Gram
Wt (g)
Skirt
Style
Ring # Pin # Lock # Gasket # Sleeve # Footnote
261546 449cc 94mm STD 12.5:1 269 FSR JG4201-3701 827-2050-15-93C 827-050-MW JC3043 5
261547 449cc 94mm STD 13.8:1 279 FSR JG4201-3701 827-2050-15-93C 827-050-MW JC3043 5

- 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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