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YFZ 450

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  • (04-05) YFZ 450 Hot Rods Bottom End Kit
    $443.95 (04-05) YFZ 450 Hot Rods Bottom End Kit
    Fits: Yamaha YFZ 450 (2004-2005)   • Kit contains crankshaft, main bearing/seals and complete gasket set for complete installation. • Kits do not include water pump...

  • (04-09) YFZ 450 Hot Rods Bottom End Kit
    $453.95 (04-09) YFZ 450 Hot Rods Bottom End Kit
    Fits: Yamaha YFZ 450 (2004-2009)   Kit contains crankshaft, main bearing/seals and complete gasket set for complete installation. When used in 04-05 model makes true 450cc. *Does not fit R or X models   •...

  • (04-09) YFZ 450 Hot Rods Stroker Bottom End Kit
    $529.95 (04-09) YFZ 450 Hot Rods Stroker Bottom End Kit
    Fits: Yamaha YFZ 450 (2004-2009)   Kit contains stroker crankshaft, main bearing/seals and complete gasket set for complete installation. (04-05) +4.4mm stroke. Makes 470cc. Uses stock piston. (06-08) +3mm stroke...

  • (04-13) YFZ 450 Hot Rods Crankshaft
    $395.95 $329.95 (04-13) YFZ 450 Hot Rods Crankshaft
    Fits: Yamaha YFZ 450 (2006-2007)   Heavy Duty (04-05) (+1.4mm stroke) makes true 450cc. Uses stock piston. Heavy Duty (06-08) standard stroke. When using Cylinder Works #21001-K01 makes 478cc. *Does not fit fuel...

  • Yamaha YFZ 450 Hot Rods +3mm Stroker Crank
    $395.95 $289.95 Yamaha YFZ 450 Hot Rods +3mm Stroker Crank
    Fits: Yamaha YFZ 450 2006-2009   Heavy Duty (+3mm stroke) makes 471cc Hot Rods Crankshafts are sold complete with the original and proven Hot Rods Connecting Rods, top end bearings, and crankshaft webs. Factory...