Designed specifically for use with Bosch motor systems, this chainring is the lightest, most advanced e-specific ring ever designed. Pairing performance and design aesthetic without compromising longevity, the ring is also compatible with our Aero-Guard to provide increased durability and protection through rough terrain.Features:- A perfect combination of lightweight ALU and the durability of a steel running surface.- Compatible with Bosch motor systems.- AeroGuard Compatible that fufills EN 15194:2017 standardSpecifications:- Chainring Size: 34T- Bolt Circle Diameter (BCD): Direct Mount (DM)- Speeds: 12s T-Type- Material (Chainring): Steel