25787XA Ring Set 65.50mm for Wiseco Motorcycle Piston Rings

Ring Set for Wiseco 65.50mm

This 65.50mm ring set is a replacement piston ring assembly for Wiseco applications, sized to restore compression and oil control in a rebuilt top end.

Overview

This 65.50mm ring set provides the sealing rings needed when servicing a piston in a Wiseco-equipped engine. The ring set is sized at 65.50mm to match the corresponding bore, helping restore compression, oil control, and combustion sealing. It is intended for riders, mechanics, and rebuilders working on a top-end refresh.

Built For Performance

• 65.50mm bore sizing to match the corresponding piston and cylinder
• Ring set configuration supplied as a matched assembly
• Designed for compression and oil control in a rebuilt top end
• Replacement part for worn or damaged rings during a piston service
• Reference number 25787XA for identification

Specs At A Glance

Good To Know

Q: How do I confirm this ring set fits my piston? A: Match the 65.50mm bore size and the 25787XA reference to your piston before ordering. Ring sets are bore and piston specific, so the size must match exactly.

Q: Can I install this without checking ring end gap? A: No, ring end gap should always be measured during assembly. File or verify the gap to the specification for your application before final installation.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.