485M07150 Piston Kit .060 for Suzuki RM250 1982-1985 71.50 mm

Piston Kit for Suzuki RM250

This Wiseco piston kit for Suzuki RM250 provides a 71.50 mm oversized piston for top end rebuilds, identified by the 485M07150 part number and a .060 oversize rating.

Overview

This Wiseco piston kit for Suzuki RM250 is a 71.50 mm oversized piston assembly intended to bring compression and performance back to 1982 through 1985 RM250 engines. The 485M07150 part number and .060 oversize marking help confirm the correct bore size before machine work begins. It works well for riders and rebuilders handling a top end refresh or a vintage restoration.

Built For Performance

• 71.50 mm bore diameter for .060 oversize cylinder preparation
• Wiseco forged piston construction built to handle two stroke heat and rpm
• 485M07150 part number for accurate identification and ordering
• Matched to Suzuki RM250 top end dimensions from 1982 to 1985
• Oversize sizing lets a worn cylinder be bored and returned to service

Fits These Machines

• for Suzuki RM250, 1982
• for Suzuki RM250, 1983
• for Suzuki RM250, 1984
• for Suzuki RM250, 1985

On-The-Job Use

• Top end rebuilds following seizure, scoring, or compression loss
• Cylinder boring and honing that requires a .060 oversize piston
• Motocross and trail riding where consistent compression is needed
• Restoration of a 1982 to 1985 RM250 with a worn cylinder

Specs At A Glance

Good To Know

Q: Will this piston drop into a stock RM250 cylinder? A: No, this is a .060 oversize piston at 71.50 mm, so the cylinder must be bored and honed to the matching size first.

Q: Why does piston to cylinder clearance matter here? A: Wiseco pistons need the clearance specified for the application, so the bore work and final measurement should be handled by an experienced engine machinist.

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