2618CS Ring Set 66.50mm for Wiseco

Ring Set for Wiseco

This 66.50mm piston ring set provides the sealing components needed to restore compression in a rebuilt top end, cross-referenced under part number 2618CS.

Overview

This piston ring set is manufactured to 66.50mm bore sizing for use in engine rebuilds and top end refresh work. The ring set delivers the compression and oil control rings needed to seal the piston against the cylinder wall. It suits riders, mechanics, and engine builders working on a Wiseco-equipped piston assembly.

Built For Performance

• 66.50mm bore sizing for a precise fit in the matching cylinder
• Compression ring design helps maintain cylinder pressure under load
• Oil control ring manages lubrication on the cylinder wall
• Durable facing material resists heat and friction during operation
• Supplied as a complete set for one piston

Specs At A Glance

Good To Know

Q: How do I know this ring set matches my piston? A: Confirm the piston calls for a 66.50mm bore and cross-reference the 2618CS number before ordering. Ring end gaps should be checked during assembly.

Q: Can I install this set without machining? A: These rings are sized for a 66.50mm bore, so the cylinder should already be finished to that dimension. Verify ring end gap and piston clearance during assembly.

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