519M05450 Piston Kit for Suzuki RM125 1985-1986 54.50 mm .020 Oversize

Piston Kit for Suzuki RM125

This Wiseco 519M05450 piston kit is a .020 oversize replacement piston assembly for the Suzuki RM125, sized at 54.50 mm and supplied with the components needed to refresh a worn top end.

Overview

This Wiseco piston kit gives riders a complete top-end replacement for the Suzuki RM125. The 54.50 mm .020 oversize piston restores compression and ring seal on a cylinder that has been honed or bored to match. It suits riders rebuilding a 1985 or 1986 RM125 for trail, track, or restoration work.

Built For Performance

• Wiseco 519M05450 piston kit sized at 54.50 mm, a .020 oversize bore
• Forged piston construction for strength under high-rpm two-stroke loads
• Ring set matched to the oversize bore for consistent sealing
• Wrist pin and circlips included for a complete top-end rebuild
• Designed as a direct-fit replacement for the Suzuki RM125 top end
• Oversize sizing lets a worn or damaged cylinder be bored back to spec

Fits These Machines

• for Suzuki RM125 1985
• for Suzuki RM125 1986

On-The-Job Use

• Top-end rebuilds on a 1985 or 1986 Suzuki RM125
• Motocross and off-road riding where compression loss needs correcting
• Restoring a vintage RM125 engine during a full rebuild
• Cylinder boring or honing work that requires a .020 oversize piston

Specs At A Glance

Good To Know

Q: Will this piston fit a stock cylinder without machine work? A: No, this is a .020 oversize piston and requires the cylinder to be bored or honed to 54.50 mm for correct clearance.

Q: Is this an original Suzuki part? A: No, this is a Wiseco piston kit made for the Suzuki RM125 and is not an original equipment manufacturer part.

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