Chainring in sizes 34T, 36T and 38T utilising efficient narrow-wide technology to improve chain retention and minimise the likelihood of chain drops. Created specifically for Bosch BDU38 drive systems and compatible with Shimano 10-/11-speed drivetrains. The 55mm optimised chainline delivers enhanced power transfer and improves overall drivetrain efficiency, making it ideal for e-bikers who value reliability and performance.