Thx all for the info. I also came to the conclusion that the kyosho bike is probably not the best solution for me. I also drive an electric off road car, but with the Kyosho bike I can't use the same stick packs, and the same 27MHz AM transmitter. And since I have to rely on summer-jobs (still student) to pay for my hobbies, I have to count every dime twice
There's a quite large parking lot nearby where I drive my nitro on-road car. The pavement is rather new, and quite flat, so I hope that 'll do. Too bad the Kyosho bike is one of the only building kits I have seen yet.