Namura Size C Standard Bore Piston Kit for Honda CRF250R CRF250RX 2018-2019 79mm

Size C Standard Bore Piston Kit for Honda CRF250R CRF250RX

This Namura piston kit is a size C standard bore replacement for Honda CRF250R and CRF250RX models from 2018-2019, featuring a 79mm piston diameter and designed for high-performance dirt bike engines.

Overview

This size C standard bore piston kit for Honda CRF250R and CRF250RX provides a direct replacement piston, rings, and wrist pin for engine rebuilds on 2018-2019 models. The 79mm cast piston is built to OEM specifications, ensuring proper compression and reliable power delivery for off-road racing or trail riding.

Built For Performance

• 79mm standard bore piston with size C marking
• Includes piston rings and wrist pin for a complete top-end rebuild
• Cast aluminum construction for strength and heat dissipation
• Precision-machined ring grooves for consistent seal
• Designed for high-RPM four-stroke engines

Fits These Machines

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

On-The-Job Use

• Motocross and off-road racing engine rebuilds
• Top-end replacement due to wear or piston damage
• Performance restoration for competition bikes
• Trail riding maintenance when restoring compression

Specs At A Glance

Good To Know

Q: Does this piston kit come with the wrist pin and circlips? A: Yes, the kit includes the piston, rings, wrist pin, and circlips – everything needed for a standard top-end rebuild.

Q: Can I use this piston with a stock cylinder on my 2018 CRF250R? A: Yes, this is a standard bore size C piston designed to fit the stock cylinder bore without overboring, provided the cylinder is within service limits.

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