Seller notes

Fits 2010 Yamaha YZ250F Stroker Bottom End Kit,br> Includes stroker crankshaft, main bearing/seals, and complete gasket set | +3mm stroke increases displacement to 264cc | Uses stock piston for easy installation | Bolt in solution for quick upgrade | Compatible with Yamaha YZ 250F (2003 2013) Hotrod's Bottom End Kit is designed to enhance the performance of your Yamaha YZ 250F (2003-2013). This kit includes a stroker crankshaft, main bearing/seals, and a complete gasket set for easy installation...

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