Namura Standard Bore Top End Rebuild Kit Size A for Honda NSR125 & CRM125 54mm

Namura Standard Bore Top End Rebuild Kit Size A for Honda NSR125 & CRM125

This top end rebuild kit includes a piston rings gaskets and wrist pin for rebuilding the cylinder on Honda NSR125 and CRM125 motorcycles with a 54mm standard bore.

Overview

The Namura Standard Bore Top End Rebuild Kit Size A provides all necessary components for a complete top end overhaul on Honda NSR125 and CRM125 bikes. Designed for 54mm standard bore engines this kit includes a piston rings wrist pin and gaskets to restore compression and performance. Rebuilding the top end with this kit helps extend engine life and maintain reliable power delivery.

Built For Performance

• Includes Namura piston rings wrist pin and complete gasket set
• Size A corresponds to standard bore diameter of 54mm
• High-strength aluminum alloy piston for durability and heat resistance
• Precision-machined rings for optimal sealing and reduced blow-by
• Complete gasket set ensures proper sealing of cylinder head and base

Fits These Machines

• for Honda NSR125
• for Honda CRM125

On-The-Job Use

• Ideal for restoring compression in a tired or blown top end
• Use when rebuilding the cylinder after a seizure or wear
• Suitable for both street and off-road use on Honda NSR125 and CRM125

Specs At A Glance

Good To Know

Q: Does this kit include a cylinder or only the internal parts? A: This kit includes the piston rings wrist pin and gaskets; a separate cylinder is required if replacing the cylinder itself.

Q: Can this kit be used on a Honda NSR125 with a 54mm bore from a different year? A: Yes as long as the engine has a 54mm standard bore this kit fits Honda NSR125 and CRM125 models that use that specification.

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