KMC e9The KMC e9 is a 9 speed chain optimized for use with e bike drivetrains and compatible with Bosch, Shimano, Yamaha, Brose, and many other e Bike systems equipped with a 9 speed drivetrain. KMC E9 Designed For e Bikes Each E9 chain is designed to resist the high torque applied to the drivetrain which in turn increases the life of the chain and reduces maintenance costs. Each KMC e9 chain includes a missing link connector and comes in a length of 136