9100ZC Ring Set 91.00mm for Wiseco Piston Rings Engine Parts

Ring Set for Wiseco

This 91.00mm piston ring set is a replacement ring package engineered for 91.00mm bore applications and delivers reliable sealing for rebuilt or refreshed top ends.

Overview

This 91.00mm ring set is made to seat against the cylinder wall and control compression, oil, and blow-by in a 91.00mm bore build. The ring set suits riders and engine builders refreshing a top end who need a matched 91.00mm ring package rather than piecing sizes together. When you replace the ring set in a 91.00mm piston, ring-to-wall sealing and oil control are restored so the engine runs cleaner and stronger.

Built For Performance

• 91.00mm bore sizing for a matched fit to the piston and cylinder
• Multiple rings per set to cover compression and oil control duties
• Steel construction built to handle heat and cylinder pressure
• Precision-formed profiles for consistent wall contact and sealing
• Replacement ring set intended for top-end rebuilds, not new-engine assembly of unrelated parts

On-The-Job Use

• Top-end rebuilds on 91.00mm bore engines
• Refresh work after a cylinder hone or replate
• Restoring compression on a worn top end
• Shop builds that need a matched 91.00mm ring package

Specs At A Glance

Good To Know

Q: Is this ring set an original brand part? A: No, it is an aftermarket replacement ring set. Always confirm the bore size, ring thickness, and groove dimensions before ordering.

Q: Can I install this without checking my piston? A: Ring fit depends on matching the piston groove and cylinder bore, so measure both first. Using the wrong size will cause poor sealing or damage.

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