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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 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...