Wiseco PK1774 Top End Piston Kit 54mm Flat Top for Suzuki RM125

The Wiseco PK1774 is a complete top end piston kit engineered for the Suzuki RM125 (1997–2003), featuring a standard bore flat top design at 54.00mm. Built from high-silicon aluminum alloy using Wiseco's proven 2-stroke forging process, this kit delivers the strength, durability, and performance that competitive dirt bike riders demand.

Key Features:

• Standard 54.00mm bore — flat top piston design optimized for the RM125 two-stroke engine
• Forged high-silicon aluminum alloy construction — greater strength and lower thermal expansion at high operating temperatures
• Computer-engineered piston skirt profiles — minimize cylinder wall friction for improved throttle response and torque
• High-performance rings included — designed exclusively for use with Wiseco pistons
• Aerospace-grade alloy wrist pin — superior strength-to-weight ratio for reliable high-RPM performance
• Circlips included — precision-fit for secure wrist pin retention
• Complete top end gasket set included — everything needed for a full top end rebuild in one kit

Kit Includes: Forged piston, piston ring(s), wrist pin, circlips, and top end gasket set.

Wiseco piston kits are proven at every level of powersports competition and are the choice of top race teams worldwide. The PK1774 is an ideal solution for top end rebuilds or overbore projects on the Suzuki RM125. Note: Wiseco rings are not interchangeable with other brands and are designed to fit Wiseco pistons only. Cylinder bore or re-plating may be required for oversize applications.