Brompton Electric adapter frame for small bag
This is a replacement frame for the Brompton Electric small bag - the frame and the bag were introduced along with the Brompton Electric C Line
Note: Greenway adapter frame
There is as of 2025 a choice of small, large and basket bag for the Brompton Electric - they all carry the same size battery, but the small has less luggage storage capacity than the big one or the basket bag
Compatibility |
This bag frame is compatible with the older Brompton BMZ battery and the newer Brompton Greenway Battery
This bag frame is compatible with the Brompton C Line Electric and the Brompton P Line Electric with the front wheel motor
This bag frame is not compatible with non-Electric Brompton folding bikes
This bag frame is not compatible with the following:
- Brompton G Line Electric
- Brompton C Line Electric with rear wheel motor
- Brompton P Line Electric with rear wheel motor
- Brompton T Line Electric with rear wheel motor
There is a Brompton logo on the back
Weight - 473g (on our scales)
The frame is released from the (Brompton Electric specific) front carrier block by pushing a button on the top of the frame (as opposed to pushing a lever on the carrier block itself like on the non-electric Brompton bike range)
We have made this video below about the Brompton Electric bag - small versus large, which includes how to remove and install the frame
In 2025 Brompton started rolling out the new battery introduced with the G Line to C Line and P Line Electric bikes
To help with understanding the compatibility between bag frames and batteries we made the below video
Brompton Q part code: Q103673
Brompton part number: 9068944