The e-Bike series chains are specifically designed for use on bicycles with powerful central motors. Optimized pin strength and unmatched durability are key features of KMC e-bike chains. The chain's Double X-Bridge technology ensures precise and smooth shifting even in the harshest conditions. The manufacturer rates its durability rating as a 5 out of 5. The chain is compatible with 10-speed drivetrains. KMC e10 x122 X-Bridge eBike Bicycle Chain Parameters: Manufacturer: KMC Model: e10 Dimensions: 1/2″ x 11/128″, 122 links Shank length: 5.88 mm Color: silver Technologies: e-Bike, Double X-Bridge Additional clip: yes Weight (for 110 cells): ~249 g