Namura Standard Bore Size B Top End Kit for Honda CRF250R CRF250RX 2018-19 79mm

Standard Bore Size B Top End Kit for Honda CRF250R CRF250RX 2018-19 79mm

This Namura top end kit includes cylinder, piston, rings, wrist pin, and gaskets for rebuilding Honda CRF250R and CRF250RX engines from 2018-2019, featuring a standard bore size B at 79mm.

Overview

This Namura top end kit is a complete cylinder and piston assembly designed for Honda CRF250R and CRF250RX models from 2018 to 2019, using a 79mm standard bore size B. It provides all necessary components for a top-end rebuild to restore power and compression.

Built For Performance

• Includes OEM-spec cylinder with crosshatch finish for ring seating
• Piston features a durable skirt coating for reduced friction
• Includes high-quality piston rings for consistent compression
• Complete gasket set for a hassle-free installation
• Manufactured to strict tolerances for reliable performance

Fits These Machines

• for Honda CRF250R 2018-2019
• for Honda CRF250RX 2018-2019

On-The-Job Use

• Top-end rebuild after high-hour use
• Restoring lost compression and engine power
• Motocross and off-road racing maintenance
• Replacing worn cylinder and piston assembly

Specs At A Glance

Good To Know

Q: Is this kit compatible with a 2018 CRF250R? A: Yes, this top end kit is designed for the 2018-2019 CRF250R and CRF250RX, using the standard 79mm bore size B.

Q: Does the kit come with a new cylinder? A: Yes, the kit includes a new cylinder, piston, rings, wrist pin, and all necessary gaskets for a complete top-end rebuild.

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