Well this being my very first time putting a motorized bicycle together the only thing that screwed up was the chain from the motor to the back wheel wich destroyed the wheel and the tensioner. I have since taken the bike to a shop the actually builds the motor bikes and he had to replace the chain because it was bent and twisted but this is a beach cruiser bike wich I understand is very comaptable with motors. And the roads around here arent excatly rough So Do you guys think the frame will be ok and i will be keeping the speed under 30 mph and will mainy be used for local travel less than 15 miles a day. And the bike itself is brand new. Also i have purchased mirrors turn signals and headlights so think the bike will hold up for awhile?