Cylinder Piston Rings Top End Kit For Honda CRF70 ATC70 XR70 TRX70 C70 CL70 S65

Cylinder Piston Rings Top End Kit for Honda

This cylinder piston rings top end kit rebuilds the top end of small Honda four-stroke engines, restoring compression and power lost to worn rings and cylinder walls.

Overview

This cylinder piston rings top end kit contains the parts needed to refresh the upper end of a worn Honda engine. The kit replaces the cylinder, piston, rings, and related hardware so compression, oil control, and combustion efficiency return to proper working condition. It is built for riders and mechanics servicing 70cc-class Honda machines.

Built For Performance

• Fresh cylinder bore restores proper piston-to-wall clearance
• New piston and rings recover lost compression
• Ring set designed for consistent oil control and sealing
• Includes wrist pin, clips, and gaskets for a complete top end rebuild
• Direct-fit replacement for the factory top end assembly
• Aluminum cylinder construction with steel sleeve for durability

Fits These Machines

• for Honda CRF70
• for Honda ATC70
• for Honda XR70
• for Honda TRX70
• for Honda C70
• for Honda CL70
• for Honda S65

On-The-Job Use

• Top end rebuilds after low compression or smoking
• Restoring power to trail bikes and mini four-strokes
• Routine maintenance on high-hour engines
• Rebuilding engines for resale or restoration projects
• Replacing scored or worn cylinders during overhaul

Specs At A Glance

Good To Know

Q: Will this kit fit my specific Honda model? A: Fitment depends on model and serial number, so verify the engine code and bore size before ordering. Measuring the old cylinder and piston is the safest way to confirm.

Q: Do I need to hone or machine anything before installing? A: This kit replaces the cylinder itself, so no boring is needed, but cleaning the crankcase and checking rod play is recommended. Follow the service manual for ring gap and torque values.

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