Brompton Electric adapter frame for large bag

Brompton Electric adapter frame for large bag

This is a replacement frame for the large Brompton Electric bag - the bag which also contains the battery for powering the Brompton Electric

For Brompton C Line Electric and P Line Electric only with a front wheel motor 

Note: This is the Greenway frame for the either the BMZ (original) or Greenway (G Line) battery for electric bikes with a front motor and is not compatible with the new rear wheel motor or e-Motiq Bromptons

Note: This frame is not compatible with non-electric versions of the Brompton folding bike - the front carrier block is different

Note: This frame is not compatible with the C, P, T or G Line Electric Bromptons with a red wheel motor 

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

We've made a short YouTube video - below - about the differences between the large and small Brompton Electric bags. This includes details on how to remove and install the replacement frame into the bag.

Due to the launch of the new G Line battery and frame in 2025 we made the below video on the compatibility of frames and bags

Brompton part no: TBC
Brompton old Q part code: Q103641