Athena P400210100023 163.5cc Big Bore Cylinder Kit (69mm Bore) - Forged Piston Performance Upgrade, Converts 150cc to 163.5cc, Compatible with Honda CRF150R 2007-2014 Antii-seize it’s ideal for motocross riders

it’s ideal for motocross riders who prefer to oil their own filters and demand long-lasting protection in extreme off-road conditions

large single turbo installations

Choose the Hoosier Racing Tire 120/80-19 IMX20 C100 C100 Dirt Bike Rear Tube Type Tire for your rider's 250

and charger

Athena P400210100023 163.5cc Big Bore Cylinder Kit (69mm Bore) - Forged Piston Performance Upgrade, Converts 150cc to 163.5cc, Compatible with Honda CRF150R 2007-2014 Antii-seize it’s ideal for motocross ridersUPGRADE YOUR DIRT BIKE TO THE NEXT LEVEL OF PERFORMANCE Extract massive power, aggressive low end torque, and unmatched acceleration from your 150cc four stroke engine with the Athena Big Bore Cylinder Kit (Part No. P400210100023), a premium race proven package engineered in Italy to seamlessly convert your factory setup into a high revving, high output 163. 5cc powerhouse. Entirely cast from high grade aluminum and treated with a specialized Motor