
Shimano Internal Gear Hub Identification
In order to know what spare parts are available and compatible with your Shimano Alfine or Nexus internal gear hub you will need the Shimano "SG code".
This denotes the model and series of your hub.
If you need our help finding parts and spares we will ask you for the Shimano code of your component.

SG code (Highlighted in Blue) on the rear of the derailleur.
Note on Di2: Shimano Alfine and Nexus that have a blue band around them are only compatible with Di2 electronic shifting motors.
They can not be retrofitted to work with non Di2 shifting mechanisms.

