Regina 520 ZRE Z-ring chain + Connecting & Rivet link

AdventureUltra
Designed and developed to withstand the severe stresses caused by Off-Road riding, ZRE chains are intended for long distance Adventure use, thanks to the special Z-Ring which allows extended lubrication intervals while delivering incredible durability levels. ZRE chains are assembled with high carbon alloy steel, solid bushings and rollers, shot-peened plates, pins and rollers to reach high fatigue limits. ZRE is the chain you can trust, the best choice for Adventure riding.
International Reference: 520Regina Reference: 135 ZRESeal: ZRColor: G/B