Wiseco 2-Stroke Pro-Lite Series - ø66.40mm Piston kitRef : WI00123A / 1122556003

WISECO 2T Pro-Lite Series piston kit designed for motocross engines as a replacement or for preparation purposes. Forged aluminum piston, engineered to meet the demands of 2-stroke motorcycles where lightness and mechanical strength are essential. This product comes from a range recognized for nearly 50 years for its expertise in engine parts.

• Manufacturer reference: W856M06640C
• Series: Pro-Lite 2T
• Piston compression: Standard
• Material: Forged aluminum
• Diameters (manufacturer data): Ø piston 66.330 mm / Ø (mm) 66.36
• Nominal designation: Ø 66.40 mm
• Oversize: +0.02 (letter C)

This kit is suitable for preparations and replacements on 2T motocross engines when a C oversize is required. The Pro-Lite design prioritizes the reduction of unsprung mass for a more responsive engine behavior without altering the operating principles. Installation and inspection by a specialized mechanic are recommended to ensure piston/cylinder clearance and ring calibration.

Frequent compatibilities: KTM 250 SX (2025), HUSQVARNA TC 250 (2025), GAS GAS MC 250 (2024) — please verify compatibility with your bore before ordering.