Regular e-bikes (the 25 kph version) are hacked with abandon but even then you are no longer legal (here, in NL and many other european countries). Time will tell if I will eventually manage to run my own firmware but right now I'm not hopeful that that will ever happen (I'd love to update the range computation algorithm). The Bosch system is the one that I now have extensive experience with and the handshake between the controller, the motor and then battery is of a complexity level that I have not managed to crack it despite a serious effort in that direction. Believe me I tried and reverse engineering is not something that I have a moral block against or so.Įvery s-pedelec that I'm aware of is legal to buy and drive on the roads here is locked down. Read again: the claim is that these bikes can be hacked.