Pro-X Racing Piston Kit (Standard Bore "A" – 48.45mm) 01.4124.A

Pro-X Racing Piston Kit (Standard Bore "A" – 48.45mm)

Part Number: 01.4124.A

Restore the peak two-stroke performance of your Kawasaki KX85 with a high-grade ProX Racing Piston Kit. Precision CNC-machined to exact OEM tolerances, ProX pistons are manufactured using low-expansion, low-friction aluminum alloys supplied by the same original equipment found in Japanese motocross engines.

Key Features:

• Advanced Skirt Coating: Features a specialized low-friction skirt coating designed to assist during critical break-in periods, reducing wear and optimizing skirt-to-cylinder wall friction.

• OEM-Grade Casting Alloy: Formulated with high-silicon aluminum to maintain structural integrity and control thermal expansion under high-RPM racing conditions.

• Precision CNC Machining: Guarantees strict dimensional accuracy for smooth piston travel, tight compression, and reliable horsepower delivery.

• Nicasil Cylinder Compatible: Engineered specifically to work seamlessly with modern Nicasil-plated cylinder bores.

What’s Included:

• (1) ProX 48.45mm Piston ("A" Size / Standard Bore)

• (1) Complete Set of Premium Piston Rings

• (1) Wrist Pin & Circlips

Fitment:

• 2014–2023 Kawasaki KX85

⚠️ Sizing & Installation Notice:

This kit is a Standard Bore "A" Size (48.45mm) piston kit. Always measure your cylinder bore accurately prior to installation to confirm correct piston-to-wall clearance and ensure proper sizing ("A", "B", "C", etc.).