Wiseco 2-Stroke GP Series - ø58.00mm Piston kitRef : WI00142A / 1122566002

WISECO 2T GP Series Piston Kit - ø58.00mm
Manufacturer reference: W897M05800B

This forged piston is designed for 2-stroke Cross engines, and the WISECO GP Series kit is aimed at riders looking for an original replacement part or a reliable base for engine preparation. Crafted from forged aluminum, it benefits from Wiseco's expertise, with a reputation built over nearly 50 years in the racing world.

• Type: forged 2T piston (GP Series)
• Nominal diameter: Ø 58.00 mm (oversize +0.01 — Letter B)
• Measured diameter on file: Ø 57.95 mm
• Piston compression: Standard
• Material: aluminum
• Application: universal Cross, suitable for small cylinders 150 cm3 and similar

This piston fits into the top-end of enduro and motocross bikes requiring an oversize +0.01. Its forged design provides better material consistency and dimensional stability suited for the high demands of cross riding. Check the bore and tolerances of your cylinder before installation and follow the break-in procedures recommended by the manufacturer.

Examples of compatible models: KTM 150 EXC (2024), HUSQVARNA TE 150 (2024), KTM 150 EXC TPI (2023).