I test drove my new project. A £40 specialized hard rock sport and a 1000w cyclotricity. 24mph on the flat , me pedalling but with the very high gearing on the bike. Haven't got the derestriction code yet . Is the code unique for each unit or is it simply a hidden menu. I have also made a 5ah 48v battery which is doing the job nicely for £90. Plan on upgrading the discs and making a second battery to leave at work and I can swap it out when I get there. If this all pans out I'm going to put the same unit into my Cube hybrid . I'm so impressed with the ease it all fitted. Only problem was I needed a washer to space the forks away from the cassette and had to file a little off the upshifter onthetrigger shifter as it was fowlingon the throttle.