Regina 520 ZSE Z-ring chain + Connecting link

EnduroUltra
The new ZSE chains are the result of an intense development process made side by side with the best Enduro Racing Teams, with the aim to deliver the most efficient power transmission from engine to wheel, limiting friction while preserving durability. The result is the best light-running chain available on the market today.The new narrow Z-Ring, together with high carbon alloy steel shot-peened plates, offers a reliability proven by the fact that many OEMs chose to fit ZSE chain as original equipment on their Enduro bike range. These features, added to light weight and narrow width, make ZSE the best choice in terms of performance for Enduro competitions.
International Reference: 520Regina Reference: 135 ZSESeal: ZRColor: G/B