Athena Derbi GPR 125 65mm Bore 170cc Big Bore Cylinder Kit

If you're looking to significantly increase the displacement and power output of your Derbi GPR 125, this big bore cylinder kit from Athena is a substantial upgrade. This kit replaces your stock cylinder with a larger 65mm bore, bumping the engine's displacement to 170cc. This means more air and fuel can enter the combustion chamber, leading to a noticeable increase in horsepower and torque across the RPM range.

Athena has been developing aftermarket cylinder components for over a decade, and their R&D department in Italy has engineered this kit with their internal expertise and advanced testing tools. The cylinder itself is coated with Athena's proprietary motor-nicksil, a nickel-silicon alloy. This coating is designed to provide a very smooth surface for the piston to move against, which helps reduce friction and offers excellent wear resistance, contributing to the longevity of the component.

This is a comprehensive kit designed to give your GPR 125 a serious performance boost. Because this is a significant engine modification, it's recommended to ensure all other supporting components, such as the fuel system, exhaust, and potentially the clutch, are in good condition and capable of handling the increased power. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.