Genuine replacement parts

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

Product details

  1. Two-bolt nylon backplate mounts directly to Bosch motor
  2. 34-38 tooth compatibility
  3. Does not fit traditional ISCG mounts
  4. Designed for Trek 2020-2021 and select 2022 Rail & Powerfly models
  5. Included hardware is available separately to convert to 55mm chainlines (See Service Parts)