Trek e*Thirteen e*Spec Chainguide for 52mm Chainline for Bosch

Genuine replacement parts
The e*thirteen chain guide developed with Bosch helps keep the chain locked on the chainring when pedaling over rough terrain.

Provides confident and consistent pedaling over rough terrain.

- Two-bolt nylon backplate mounts directly to Bosch motor
- 34-38 tooth compatibility
- Does not fit traditional ISCG mounts
- Designed for Trek 2020-2021 and select 2022 Rail & Powerfly models
- Included hardware is available separately to convert to 55mm chainlines (See Service Parts)