Cylinder Works 16-18 WR 450 F/10-17 YZ 450 F/16-18 YZ 450 FX Standard Bore Cylinder

We use UPS, FedEx, DHL, and USPS for deliveries. We are not responsible for any shipping problems and shall not be held liable for any "reasonable" delay beyond our advertised delivery time-frames. Shipment by Ground Courier can take up to 15 business days for delivery. Express Courier can take up to 3 business days for delivery. Shipping time frames are once the order has been processed. Due to high demand, order processing can take 5 to 7 business days.

OEM-style standard bore kits include a cast aluminum Cylinder Works cylinder, Vertex Piston and gaskets needed to restore horsepower and performance, as a competitive price point, compared to OEM options.

This Part Fits:

Year	Make	Model	Submodel
2010-2018	Yamaha	WR450F	Base
2016-2018	Yamaha	YZ250	Base
2010-2017	Yamaha	YZ450F	Base
2016-2018	Yamaha	YZ450FX	Base