Wiseco PK1184 Pro-Lite Forged Piston Kit Suzuki - 56.0mm 2000-2003 RM125

The Wiseco PK1184 is a Pro-Lite forged piston kit designed for the 2000–2003 Suzuki RM125, featuring a 56.0mm bore diameter (754M oversize). Engineered for high-performance two-stroke motocross applications, this kit delivers the strength and precision needed to restore or upgrade your top end with confidence.

Wiseco's Pro-Lite pistons are manufactured from 2618 forged aluminum alloy, offering a superior strength-to-weight ratio compared to cast pistons. The forging process produces a denser grain structure that resists cracking and wear under the extreme heat and pressure of two-stroke competition engines.

Kit Includes:

• Forged aluminum piston — 56.0mm bore (754M oversize)
• Piston ring(s) — precision ground for optimal seal
• Wrist pin (piston pin) — heat-treated for durability
• Circlips (retaining clips) — for secure wrist pin retention

Key Features:

• Pro-Lite forged 2618 aluminum construction for strength and reduced reciprocating mass
• Designed specifically for the 2000–2003 Suzuki RM125 single-cylinder two-stroke engine
• 56.0mm oversize bore for use with a professionally bored or sleeved cylinder
• CNC-machined to tight tolerances for consistent ring seal and reliable performance
• Direct OEM-style fitment — no modification required

Whether you're rebuilding a worn top end or stepping up to an oversize bore after a cylinder re-bore, the Wiseco PK1184 provides a complete, competition-proven solution for your RM125.