Athena P400485100101 144cc Big Bore Cylinder Kit with Cylinder Head (58mm Bore) - Premium 2-Stroke Performance Upgrade, Compatible with Yamaha YZ125 2022-2026 Roof Mount and debris while maximizing engine

and debris while maximizing engine airflow for superior power and throttle response

The Evolution Series 4 Disc Lock

Featuring Twin Air’s patented dual-layer foam technology

designed for year-round comfort and casual style

With high resistance to tearing and punctures

Athena P400485100101 144cc Big Bore Cylinder Kit with Cylinder Head (58mm Bore) - Premium 2-Stroke Performance Upgrade, Compatible with Yamaha YZ125 2022-2026 Roof Mount and debris while maximizing engineUPGRADE YOUR DIRT BIKE TO THE NEXT LEVEL OF PERFORMANCE Extract massive power, aggressive low end torque, and unmatched acceleration from your modern generation 125cc two stroke racing engine with the Athena Big Bore Cylinder Kit (Part No. P400485100101), a premium race proven package engineered in Italy to seamlessly convert your factory setup into a high revving, high output 144cc powerhouse. Entirely cast from high grade aluminum and treated with a