Namura .040 Over Bore Top End Rebuild Kit for Honda CR85R & CR85RB Expert 48.5mm

Namura .040 Over Bore Top End Rebuild Kit for Honda

This Namura .040 over bore top end rebuild kit for Honda CR85R and CR85RB Expert includes a 48.5mm piston, rings, gasket set, and wrist pin, providing everything needed to restore compression and power.

Overview

The Namura .040 Over Bore Top End Rebuild Kit is a complete replacement kit for the Honda CR85R and CR85RB Expert. This top end rebuild kit includes a 48.5mm piston and all necessary components for a fresh top end. Designed for .040 over bore, it restores lost compression and performance in high-mileage engines.

Built For Performance

• Precision-machined piston ensures proper cylinder clearance
• Complete gasket set prevents oil and compression leaks
• Ring set provides optimal seal for maximum power
• Wrist pin and circlips included for ease of assembly
• Engineered to meet or exceed OEM tolerances for reliability

Fits These Machines

• for Honda CR85R
• for Honda CR85RB Expert

On-The-Job Use

• Restores top-end performance on Honda CR85R and CR85RB Expert dirt bikes
• Ideal for motocross and trail riding
• Replaces worn piston and rings after extended use
• Suitable for both recreational and competitive riding
• Provides reliable power delivery for two-stroke engines

Specs At A Glance

Good To Know

Q: Will this kit work for a Honda CR85R Expert? A: Yes, this top end rebuild kit is designed for both the Honda CR85R and CR85RB Expert. Confirm your engine's bore size before ordering.

Q: What is included in the top end rebuild kit? A: The kit includes a 48.5mm piston, piston rings, complete gasket set, and wrist pin with circlips. All necessary components for a top end rebuild are supplied.

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