Namura Standard Bore Top End Repair Kit Size A for Honda CR250R 2002-2004 66.4mm

Standard Bore Top End Repair Kit Size A for Honda

This 66.4mm standard bore top end repair kit includes piston, rings, wrist pin, circlips, and gaskets to restore compression and performance in the Honda CR250R.

Overview

The standard bore top end repair kit is a complete set of components for rebuilding the top end of the Honda CR250R. This top end repair kit includes everything needed for a reliable engine refresh, making it ideal for DIY mechanics and professional tuners. Using this top end repair kit ensures your motorcycle delivers peak power and durability on the track.

Built For Performance

• Includes a forged piston for high-strength and heat resistance
• High-quality piston rings provide excellent sealing and reduced blow-by
• Precision-ground wrist pin and circlips ensure secure assembly
• Complete gasket set matches OEM specifications for a leak-free seal
• Kit is designed for standard 66.4mm bore, no machining required

Fits These Machines

• for Honda CR250R (2002-2004)

On-The-Job Use

• Used during full top end rebuilds on motocross and off-road bikes
• Ideal for restoring power after high-hour engine wear
• Commonly installed in race preparation and maintenance intervals
• Suitable for both track and trail riding applications

Specs At A Glance

Good To Know

Q: Does this kit include a piston? A: Yes, it includes a forged piston and rings specifically sized for the 66.4mm standard bore.

Q: Is this kit compatible with oversize bores? A: No, this is a standard bore kit; for oversize options, choose the appropriate size.

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