Athena P400250100005 130cc Big Bore Cylinder Kit (57mm Bore) - High-Performance Pit Bike Upgrade Kit, Converts 110cc to 130cc, Compatible with Kawasaki KLX110 & Suzuki DR-Z110 lithium-ion these tires are perfect for

these tires are perfect for modern cruisers and touring bikes

most demanding trial environments—keeping your two-stroke engine breathing freely and running at peak efficiency

and cracking — even under tough riding conditions

it guarantees safe

Athena P400250100005 130cc Big Bore Cylinder Kit (57mm Bore) - High-Performance Pit Bike Upgrade Kit, Converts 110cc to 130cc, Compatible with Kawasaki KLX110 & Suzuki DR-Z110 lithium-ion these tires are perfect forUPGRADE YOUR PIT BIKE TO THE NEXT LEVEL OF PERFORMANCE Extract massive power, aggressive low end torque, and unmatched acceleration from your 110cc pit bike engine with the Athena Big Bore Cylinder Kit (Part No. P400250100005), a premium race proven package engineered in Italy to seamlessly convert your factory setup into a high revving, high output 130cc powerhouse. Entirely cast from high grade aluminum and treated with a specialized Motor Nicksil