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Bright red color for easy leak detection
of torque gain to the rear wheel
Fuel injected engines will require remapping of the fuel injection system
1999-2008 Gas Gas Enducross EC 300
2001-2002 Yamaha WR250F
Athena P400270100023 Big Bore Cylinder Kit (276cc) - 82mm Bore engine-plugs-caps-dipsticks Bright red color for easyKits include aluminum cylinder with nickel carbide coating designed with larger water jackets. Includes Forged piston, rings, clips and pin. Athena top end gasket set includes required seals and hardware. Easy to follow step by step installation instructions. Most are bolt on; no machining required except where noted. Vehicle Fitment: 2017 2019 Husqvarna FE250 2017 2019 KTM 250 EXC F
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