Chainring in sizes 38T and 40T utilising efficient narrow-wide technology to improve chain retention and minimise the likelihood of chain drops. Created specifically for Bosch BDU33 (Gen3) drive systems and compatible with Shimano 10-/11-speed drivetrains. The 52mm optimised chainline delivers enhanced power transfer and improves overall drivetrain efficiency, making it ideal for e-bikers who value reliability and performance.