Namura .060 Over Bore Top End Rebuild Kit for Honda CRF250F for 2019-2024 72.5mm

.060 Over Bore Top End Rebuild Kit for Honda CRF250F

This top end rebuild kit from Namura features a 0.060-inch oversize bore with a 72.5mm piston, designed for the Honda CRF250F to refresh or upgrade the cylinder and piston assembly.

Overview

This top end rebuild kit from Namura is a 0.060 over bore kit for Honda CRF250F models from 2019 to 2024, increasing displacement slightly while restoring compression. It includes a 72.5mm piston, rings, wrist pin, and circlips, providing everything needed to rebuild the top end of your CRF250F engine. This kit is ideal for riders seeking to replace worn components or gain a modest performance boost.

Built For Performance

• Includes a 72.5mm cast or forged piston (depending on production run) for reliable power
• 0.060 overbore increases displacement and restores cylinder compression
• High-quality piston rings reduce blow-by and improve sealing
• Complete kit with all necessary gaskets and seals for a full top end rebuild
• Precision-machined cylinder sleeve compatible with stock or overbore

Fits These Machines

• for Honda CRF250F 2019
• for Honda CRF250F 2020
• for Honda CRF250F 2021
• for Honda CRF250F 2022
• for Honda CRF250F 2023
• for Honda CRF250F 2024

On-The-Job Use

• Motocross racing and trail riding
• Enduro and off-road competition
• Engine rebuilds to restore lost performance
• Rebuilding for increased engine output

Specs At A Glance

Good To Know

Q: Does this kit require any machining to install?A: Yes, the cylinder must be bored to match the overbore piston; this kit is intended for use with a properly machined cylinder.

Q: Can I use this kit on a stock crankshaft?A: Yes, the kit is designed to work with the stock connecting rod and crankshaft for the Honda CRF250F.

Slight variation in finish or dimensions may occur between production runs, so confirm compatibility before ordering.