I am new to motorized biking if I forget my old motorcycle days. Since I got replacement knees, I needed some help to get out on my bike. I bought a GEBE 33 cc 2 cycle and put it on a Trek 7100. Then it started to rain and rain and rain. I got just about 10 miles on it and am really happy. Now the temperature is lethal for an old guy like me, but am waiting patiently for September. I look forward to getting lots of good information from the forums.