Racer X Films: 2019 Yamaha YZ250 F Garage Build

The Yamaha YZ250F is an incredible machine right off the showroom floor, but we always want more. Parts Used: Twisted Development Engine Mapping with Stock ECU, Head Porting (valve seats cut) Vertex Pistons GP Racer High Compression Piston Kit (rings, DLC pin, clips) Factory Connection Suspension Rebuild, Service and ReValve Supersprox Rear Sprocket, Front Sprocket, Gold MX Race Chain G520MXTL120 Uni Filter