This is my attempt to reproduce mini Claas set 42102 (to be released in 2020) from photos that were shown on stonewars.de website mid of November 2019.
I don't have the red 5M levers or the wheel hub, therefore I chose a different colour.
First version had a 7L axle connecting both rer wheels. This interferes heavily with steering characteristics. Therefore I changed towards 3.2L axle with stop. If pushed fully into the wheel, they will rest inside the 5x3L beam giving enough stability.

list@electronic-origins.net, 11/2019