The KMC Bosch Gen 4 Super Narrow 40T chainring is specially designed for Bosch Gen 4 e-bike systems and offers maximum efficiency, durability and an exceptionally smooth drive. Thanks to the use of hardened chromoly steel, this chainring is extremely wear-resistant and ideal for demanding e-bike riders. With a direct mount system and a 9.0 mm offset, a perfect chainline of 52.0 mm is achieved, which ensures optimal performance and less wear. The chainring is fully compatible with KMC e-bike chains such as the e1, e8, e9, e10, e11 and e12 and, together with the KMC e1 EPT chain, delivers a guaranteed lifespan of 3,500 kilometers or more. Main features:

Suitable for Bosch Gen 4 e-bike systems

38T chainring, spacerless design

Chainline: 52.0mm

Direct Mount with 9.0mm offset

Manufactured from hardened chromoly steel for maximum durability

Compatible with KMC e1 / e8 / e9 / e10 / e11 / e12 chains

Designed for maximum efficiency and longer battery life

In combination with the KMC e1 EPT chain, guaranteed 3,500+ km lifespan. This chainring is the perfect choice for riders who place high demands on performance, efficiency and longevity of their drivetrain. KMC chainring Super narrow 40t 1/2 X 11/128 Direct Mount, 9.0 mm offset cl 52.0 Bosch Gen 4, hardened Chromoly steel. e1 / e8 / e9 / e10 / e11 / e12