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Big Bore Kits

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  • APC Racing LTR 450 95.5mm Stock Bore Top Kit
    $539.99 APC Racing LTR 450 95.5mm Stock Bore Top Kit
    Fits: Suzuki LTR 450 (All Years and Models)   95.5mm cylinder works on all years and models CP 13:1 2 Ring piston kit runs on pump or race gas Cometic top end gasket...

  • APC Racing Raptor 700 105.5mm Big Bore Cylinder
    $324.99 APC Racing Raptor 700 105.5mm Big Bore Cylinder
    Fits: Yamaha Raptor 700 (All Years and Models)   Nikasil coated 734cc aluminum cylinder Drop in - no machining required Fits all years and models Works with any 105.5mm piston and/or...

  • APC Racing Raptor 700 108mm Big Bore Kit
    $649.95 APC Racing Raptor 700 108mm Big Bore Kit
    Fits: Yamaha Raptor 700 (All Years and Models)   Works on all years and models Includes Nikasil Cylinder, CP Piston, Rings, Pin, Clips Gasket Set Includes Head, Base, Chain Tensioner, and Exhaust Gaskets Custom...

  • APC Racing Yfz 450 98mm Big Bore Cylinder
    $239.99 APC Racing Yfz 450 98mm Big Bore Cylinder
    Fits: Yamaha YFZ 450 (All Years and Models)   Nikasil coated aluminum cylinder Drop in - no machining required Fits all years and models Works with any 98mm...

  • Raptor 660 APC Racing 102mm 686cc Big Bore Cylinder kit with CP Piston
    $549.95 Choose Options Raptor 660 APC Racing 102mm 686cc Big Bore Cylinder kit with CP Piston
    Fits: YAMAHA Raptor 660 2004 - 2005 The APC Racing Big Bore kit is a highly reliable, proven cylinder kit, using only the highest quality parts available. We combine our cylinder kits with CP-Carrillo pistons and Cometic...

  • TRX 450R APC Racing 97mm 479cc Big Bore Cylinder kit with CP Piston
    $595.95 Choose Options TRX 450R APC Racing 97mm 479cc Big Bore Cylinder kit with CP Piston
    Fits: Honda Trx450R (04-05)   The APC Racing Big Bore kit is a highly reliable, proven cylinder kit, using only the highest quality parts available. We combine our cylinder kits with CP-Carrillo pistons and Cometic...

  • YFZ 450 APC Racing 97mm 478cc Big Bore Cylinder kit with CP Piston
    $595.95 Choose Options YFZ 450 APC Racing 97mm 478cc Big Bore Cylinder kit with CP Piston
    Fits: YAMAHA YFZ 450 2004 - 2012 The APC Racing YFZ 450 Big Bore kit is a highly reliable, proven cylinder kit, using only the highest quality parts available. APC Racing's YFZ 450 cylinder is specifically casted for this...