This is a 3D printed adapter for Classic Dahon III folding bike. With this adapter, you can directly carry Brompton bags (or other compatible bags) without a Brompton carrier block.
This is a 3D printed adapter for Classic Dahon III folding bike.
With this adapter, you can directly carry Brompton bags (or other compatible bags) without a Brompton carrier block.
For better durability, various types of filament materials are used to print this adapter (e.g. the clamp is printed in PETG or ABS)
This adapter needs to be installed on the head tube (stem), where the front reflector is mounted.
Because the head stem rotates as you make turns, small and medium-sized bags are recommended. A maximum loading of 3KG is advised.
Caution: Bags that are too large or too heavy may affect the balance and safety of your ride.
This adapter has been tested to endure loading of 3kg over a long period of time.
See a video demonstration here: https://youtu.be/nTP0Cw7blro
To the best of my knowledge, there are two Dahon III models, the Asian model and the Western model.
The Asian model has a headtube diameter of approx. 32mm.
The Western model has a headtube diameter of approx. 34mm, and a wire mount bracket on the headtube (below the reflector).