Thanks, Andre. I remember that Raleigh advert! Good stuff.
So many memories & tangents here. When I first lived & worked in Zambia (1969-71), there were Raleighs everywhere, standard-issue black. I even saw a few Rudges (!) A few years later, I was in Lusaka and Luapula doing graduate research, and bought myself a "Flying Pigeon", a made-in-China Raleigh/Rudge knockoff. I asked Patel's on ChaChaCha Road to install a 3-speed SA, which they did. That worked very well to get me around Lusaka, 'til it was pinched.
Part of what intrigued me about the Beeb podcast was the Buffalo Bicycle,
made in Zambia, and I'm sure full of Raleigh/Rudge design echoes.
And, on the matter of bamboo bikes, here's an item designed and made in Uganda:
https://boogaalibikes.com/ They could say, "Made from bamboo harvested at 14,000 feet in the rainforests of the Ruwenzoris." Now that may not be exactly or 100% so, but it
could be so.
I'm sure you know of the Mulanje massif in Malawi (made famous beyond Southern Africa by van der Post's book,
Venture to the Interior). There's a race held there each year (up to the topmost peak, Sapitwa, and back down to the Likhubula Pools, about 15,000 ft in all), for guides and porters employed on the mountain. The prize for the winner is a new bicycle, a prized item in rural Malawi.
Cheers, John