Namura Standard Bore Piston Kit Size B 66.35mm for Honda CR250R 1986-1996 66.4mm

Standard Bore Piston Kit Size B 66.35mm for Honda CR250R

This aftermarket standard bore piston kit size B 66.35mm replaces the OEM piston on Honda CR250R models from 1986 to 1996, restoring compression and performance.

Overview

The standard bore piston kit size B 66.35mm is a direct replacement for the Honda CR250R 1986-1996, offering a precise fit and durable construction. This piston kit ensures your two-stroke engine runs efficiently with reliable power delivery. It is an essential component for top-end rebuilds on the Honda CR250R.

Built For Performance

• Precision-machined from high-strength cast aluminum alloy
• Includes piston rings, wrist pin, and circlips for a complete install
• Designed to match OEM specifications for compression and clearance
• Heat-treated for durability under high RPM operation
• Lightweight design reduces reciprocating mass for quicker throttle response

Fits These Machines

• for Honda CR250R 1986 to 1996

On-The-Job Use

• Motocross and enduro racing
• Trail riding and off-road adventures
• Engine rebuilds and top-end overhauls
• Restoration of vintage Honda CR250R models

Specs At A Glance

Good To Know

Q: Does this kit include everything needed for installation? A: Yes, it comes with the piston, rings, wrist pin, and circlips for a complete top-end rebuild.

Q: Can I use this piston if my cylinder has been bored oversize? A: This is a standard bore piston; if your cylinder has been bored, you must select the corresponding oversize piston kit.

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