maccer

Anyone selling a Haibike in need of a new battery, motor or general repairs. Any model considered, price should be realistic though!

I have a Haibike Hardnine and want to derestrict the bike for use off road. Having looked at the tuning box solution and the move sensor to crank solution , I am looking for something simpler. I saw online several posts stating that moving the magnet & sensor will not increase assisted top speed beyond the 15mph limit...why? Taking a very simplistic view, the bikes computer sees the RPM from the magnet/sensor and using the stored computer setting for wheel size, cuts the power at a certain RPM. So lets say the setting is 1 rev per second equates to 15mph. For visualisation if you could fit a 10ft wheel instead and place the magnet/sensor near the wheel rim, then your 1rps will increase your travelled distance by a huge factor which also means your speed increases too. Therefore moving the magnet/sensor on your existing wheel outwards will achieve the same effect, albeit by a much smaller margin. I estimated 30mm movement will increase speed assist limit by 3mph or am I missing something?