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Hot Rods Stroker Crankshaft Assembly for Yamaha YZ250F models, 2003-2013. This heavy-duty crankshaft features a +3mm stroke, increasing displacement to 264cc while maintaining compatibility with the stock piston. For an upgrade to 285cc, use with Cylinder Works kit #21002-K01. Designed for easy installation and reliable performance.
Part Number: 56-2291.HR+3mm
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