Gb
Grand Bois have started making in-house their own frames since 2017.
a lot of parts are manufactured in Taiwan.
I have heard Grand Bois and Heine’s Herse commission a German designer living in Taiwan to design parts. That includes the Nivex derailleur, brakes — there’s a German living in Taiwan who is the brains behind the innovations these companies trial. A full insight is needed how the relationship works