Namura Standard Bore Size C Piston Kit for Honda many CRF250R & CRF250X 78mm

Standard Bore Size C Piston Kit for Honda

This standard bore Size C piston kit replaces the OEM piston for Honda CRF250R and CRF250X motorcycles, using a 78mm bore to restore performance in many dirt bike engines.

Overview

This piston kit is designed for Honda CRF250R and CRF250X models, providing a standard bore Size C piston that matches factory specifications. The kit includes the piston and piston rings, offering a reliable replacement for worn components in off-road motorcycles. Ideal for riders looking to refresh their top end, this piston kit delivers consistent compression and power.

Built For Performance

• Constructed from forged aluminum alloy for strength and heat resistance
• Precision-machined ring grooves ensure proper ring seating
• Standard bore 78mm size maintains original engine dimensions
• Designed to reduce friction and improve throttle response
• Includes high-quality piston rings for optimal seal

Fits These Machines

• for Honda CRF250R
• for Honda CRF250X

On-The-Job Use

• Used in top-end rebuilds for Honda 250cc dirt bikes
• Suitable for motocross, trail riding, and enduro racing
• Restores compression in high-mileage engines
• Commonly chosen by mechanics for performance restoration

Specs At A Glance

Good To Know

Q: Will this piston fit both CRF250R and CRF250X models? A: Yes, this Size C piston kit is designed to fit many Honda CRF250R and CRF250X motorcycles with a 78mm bore, but always verify your specific engine serial number for compatibility.

Q: Does the kit come with wrist pin or circlips? A: This kit includes the piston and rings only; wrist pin and circlips are sold separately, so check your engine's requirements before installation.

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