Hello everyone i been doing motorized bicycles for about 3 yrs . I have to happy time kits one is 66cc the other is 49cc also i got a dax friction drive with a monster motor 49cc 2 banger before i got in the motor bike thing i was a bicycle tourer i traveled quite a bit lot of miles i took a small trip on my happy time bike didnt trust to far my friction drive is what i ride on my trips so little to go wrong.....