Well here I am, the frame is my offspring
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If anybody wants to know some specifik details about the frame, just shoot.
Here is a reply on Kepler's questions.
I constructed the frame of 2mm steelsheet, maby kinda overrated. 1.5 should have done it to.
Annyway, I its as strong as a tank
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The dropouts: one side is standard, the other side I had to reïnforce with a 10mm thick steel plate. Cut the dropout in it and welded it to the frame.
Also the rear bracket for disc brakes I had to custom build and weld it to the frame.
The weight is 9kg, sorry Jan, I was 1kg off.
About the speed, I did not had any problems with that. top speed at 50V was 56kmph.
No sore back, or,... But I did used a spring guided seatpost. That one is also on its way to Jan.
There are also hydraulic suspension seatposts on the market I've seen, should even work better. But they are expensive
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The concept is to use a lot, a lot and lots of batteries. There is enough room for it.
I ran 1200W lipo on it, while the inside of the frame was only filled for 40%, with 1200W lipo^^.
I like your idea Jan, to fit a charger in it. I only installed the batteries in it.
You could also install 80*80mm fans, there are 3 holes in the back for it. Only if you want to
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