Athena P400270100023 Big Bore Cylinder Kit (276cc) - 82mm Bore engine-plugs-caps-dipsticks of torque gain to the

of torque gain to the rear wheel

1999-2008 Gas Gas Enducross EC 300

2006-2008 KTM 250 SXS-F

2001-2002 Yamaha WR250F

Fuel injected engines will require remapping of the fuel injection system

Athena P400270100023 Big Bore Cylinder Kit (276cc) - 82mm Bore engine-plugs-caps-dipsticks of torque gain to theKits 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