i live around seven miles from where i work... there are plenty of backroads to travel, it's a rural area, nice ride- but is it too far? not that i want to ride it every day, but is blaring along at 35 for seven miles harmful? this is my first moped, and i just want to know the do's and don't before i do something i shouldn't. i have an 80 sasch, but how do i tell what style it is? it is a step through, exactly like the light blue one in the photo section. also, between 10-20 mph, there is a distinct thump thump thump... at lower speeds it doesn't happen, and it seems to smooth out at higher speeds as well. it's not so much that i can hear it as feel it. any help?