Namura Size C Standard Bore Top End Repair Kit for Yamaha YZ125 2005-2021 54mm

Namura Size C Standard Bore Top End Repair Kit for Yamaha YZ125

This Namura Size C standard bore top end repair kit for Yamaha YZ125 provides all components needed to restore cylinder compression and performance for model years 2005-2021 with a 54mm bore.

Overview

The Namura Size C standard bore top end repair kit for Yamaha YZ125 includes piston, rings, pin, gaskets, and circlips to refresh the engine top end. Designed for 2005-2021 YZ125 models, this 54mm bore kit restores compression and power for motocross and trail riding.

Built For Performance

• Lightweight forged piston for high RPM reliability
• Chrome-plated piston rings reduce friction
• Premium gasket set ensures leak-free seal
• Heat-treated wrist pin for strength
• Includes circlips and all necessary hardware
• Direct fit for Yamaha YZ125 2005-2021

Fits These Machines

• for Yamaha YZ125 2005-2021

On-The-Job Use

• Motocross racing at competitive levels
• Trail riding and enduro events
• Off-road recreational riding
• Restoring top end performance on older engines

Specs At A Glance

Good To Know

Q: Is this kit suitable for a stock YZ125? A: Yes, this standard bore kit (54mm) is designed for stock cylinders that have not been oversized.

Q: Does it include a gasket set? A: Yes, the kit includes all necessary gaskets and seals for a complete top end installation.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.