BBB E-Powerline Single ChainThis high-performance chain is specially engineered for road or MTB E-bike use. Whether you're riding on the road or across the forest, its stunning nickel construction delivers superb torque. This lightweight and durable model is the perfect replacement for those who need a tough component for tough rides. Features: Material: Nickel Use: Road or MTB E-bikes Links: 136 Compatibility: 9, 10 or 11 speed options available to select Reinforced chain plates for E-bike use Weight: 328g (approx)Buy BBB Components from Chain Reaction Cycles, the World's Largest Online Bike Store.