Namura Standard Bore Piston Kit Size C 66.36mm for Honda CR250R 1986-1996 66.4mm

Standard Bore Piston Kit for Honda

This Namura standard bore piston kit is a direct replacement for Honda CR250R models from 1986 to 1996, featuring a 66.36mm piston (Size C) for a 66.4mm bore.

Overview

This Namura piston kit is designed to restore compression and performance in Honda CR250R two-stroke engines from 1986-1996. It includes a 66.36mm piston (Size C) and rings for a direct top-end rebuild. This standard bore piston kit is ideal for restoring factory specification performance.

Built For Performance

• Precision-machined from high-strength aluminum alloy
• Includes piston rings, wrist pin, and circlips
• Designed to meet OEM specifications for reliable power
• Lightweight design reduces reciprocating mass for quicker revs
• Direct fit replacement for stock piston

Fits These Machines

• for Honda CR250R (1986-1996)

On-The-Job Use

• Motocross track use requiring high-rev durability
• Off-road trail riding and enduro racing
• Top-end engine rebuilds to restore lost compression
• Replacement for worn out pistons in high-hour engines

Specs At A Glance

Good To Know

Q: What is the difference between standard bore and oversize? A: Standard bore piston is for cylinders within factory specifications; oversize pistons require boring the cylinder.

Q: Does this kit include a wrist pin bearing? A: It includes a wrist pin and circlips but not the wrist pin bearing; check your service manual for bearing spec.

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