Namura .020 Over Bore Piston Kit for Honda CR250R fits 1986-1996 Models 66.9mm

Namura .020 Over Bore Piston Kit for Honda

This Namura .020 over bore piston kit is designed for the Honda CR250R, fitting 1986-1996 models with a 66.9mm bore size.

Overview

This Namura .020 Over Bore Piston Kit provides a high-quality replacement piston for Honda CR250R motorcycles from 1986 to 1996. Precision machined from durable aluminum alloy, it restores compression and performance when boring the cylinder 0.020 inches over standard. Ideal for engine rebuilds and top-end refreshes, this kit includes the piston, rings, wrist pin, and circlips for a complete installation.

Built For Performance

• Cast aluminum alloy piston for strength and heat dissipation
• Includes premium piston rings for optimal sealing
• Wrist pin and circlips included for hassle-free assembly
• Precision machined to 66.9mm bore diameter
• Lightweight design reduces reciprocating mass
• Compatible with stock cylinder after overbore

Fits These Machines

• for Honda CR250R 1986-1996

On-The-Job Use

• Motocross racing and track days
• Off-road trail riding and enduro competitions
• Engine rebuilds and top-end overhauls
• Performance restoration of vintage CR250R models

Specs At A Glance

Good To Know

Q: Can I use this piston in a stock bore cylinder? A: No, this is a 0.020 over bore piston and requires the cylinder to be bored to 66.9mm to fit properly.

Q: Does this kit include a gasket set? A: No, it includes only the piston, rings, wrist pin, and circlips; you will need to purchase a top-end gasket kit separately.

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