Athena P400210100009 280cc Big Bore Cylinder Kit (82mm Bore) - Forged Piston Performance Upgrade, Converts 250cc to 280cc, Compatible with Honda CRF250R & CRF250X 2004-2015 Wheel Kits Its 18x10-8 size

Its 18x10-8 size

The depth adjusts without tools

With features like 30mm chest suspension

and airborne contaminants before they reach critical engine components

while the multi-impact tough polymer construction provides durability and protection

Athena P400210100009 280cc Big Bore Cylinder Kit (82mm Bore) - Forged Piston Performance Upgrade, Converts 250cc to 280cc, Compatible with Honda CRF250R & CRF250X 2004-2015 Wheel Kits Its 18x10-8 sizeUPGRADE YOUR DIRT BIKE TO THE NEXT LEVEL OF PERFORMANCE Extract massive power, aggressive low end torque, and unmatched acceleration from your 250cc four stroke engine with the Athena Big Bore Cylinder Kit (Part No. P400210100009), a premium race proven package engineered in Italy to seamlessly convert your factory setup into a high revving, high output 280cc powerhouse. Entirely cast from high grade aluminum and treated with a specialized Motor