Wiseco PK1282 Pro-Lite 2-Stroke Piston Kit 53.0mm Overbore for Kawasaki KX100

The Wiseco PK1282 is a Pro-Lite forged 2-stroke piston kit with a 53.0mm bore diameter (0.50mm overbore), designed as a precision top-end rebuild solution for the 1995–1997 Kawasaki KX100. Forged entirely in-house in the USA from high-silicon, low-expansion aluminum alloy, this piston delivers superior strength, reduced weight, improved heat transfer, and longer service life compared to cast alternatives.

Key Features:

• 53.0mm bore diameter — 0.50mm overbore (651M series)
• Forged aluminum construction — high-silicon, low-expansion alloy for superior strength-to-weight ratio
• Pro-Lite design — extra lightweight forging engineered for instant throttle response and maximum torque
• Computer-engineered piston skirt profile — minimizes cylinder wall friction for extended engine life
• CNC machined cam shape and profile — optimized for peak horsepower and sustained service life
• Complete kit contents — includes piston, ring(s), wristpin, and circlips for a one-stop top-end rebuild
• Forged and manufactured in the USA — all forge tooling produced in-house for full quality control

Wiseco's Pro-Lite series is the result of decades of 2-stroke piston development. Unlike cast pistons, which are brittle and prone to catastrophic failure under high stress, Wiseco forgings feature a condensed, aligned grain structure that produces higher mechanical properties and outstanding resistance to impact and fatigue — making them the preferred choice for both competitive racing and demanding trail riding.

Each kit includes all components necessary to complete a proper top-end rebuild. Replacing your piston kit at recommended intervals helps protect the cylinder plating and ensures consistent power delivery.