Big Bore Kits
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2019-2020 YZ/FX/WR 250 | 270cc Big Bore Kit | 80mm Cylinder Works & GET RX1PRO ECU
$1,499.00Complete Cylinder works 270cc big bore kit, paired with a RX1PRO GET ECU total kit. For 2019-2020 YZ250F Cylinder Kit - Big Bore - 80.00 mm - Yamaha Cylinder kit includes matching Vertex pistons to ensure longevity, performance and reduced engine...$1,499.00