Namura Technologies NA-30002-6R Piston Ring - Set 91.50mm

The Namura Technologies NA-30002-6R is a high-performance piston ring set designed for 91.50mm bore applications. This complete ring set delivers reliable compression sealing and oil control for powersports engines, ensuring optimal engine performance and longevity.

Compression Ring Construction:

• Manufactured from highly ductile cast iron or stainless steel alloy for superior durability
• Advanced chrome, phosphate, or nitride coatings provide enhanced wear resistance
• Precision-engineered to create a gastight seal for maximum compression retention
• Optimized ring tension prevents blow-by and maintains engine efficiency

Three-Piece Oil Ring Assembly:

• Two scraper rails constructed from ductile cast iron or stainless steel alloy
• Chrome, nitride, or phosphate coating on rails for extended service life
• Stainless steel expansion ring ensures consistent radial pressure
• Effective oil control reduces consumption and prevents cylinder wall glazing

Namura piston rings are engineered to OEM specifications, providing a direct replacement solution for engine rebuilds and performance applications. The 91.50mm bore size makes this ring set compatible with various motorcycle, ATV, and other powersports applications requiring this specific diameter.