I am seriously considering buying a new path trike. I have had some back problems, especially in my lower back, so I have a terrible time riding a normal bike. After a LOT of online research, I think that the Terra Trike Path is my best bet. It looks like the best bang for the buck (which is very important) and I hope it is a good one to start out with. However, I'm not sure which to get, the 3 or 8 speed. I probably won't be doing more than riding it around my small town and the roads are quite level; no big hills or anything. Does anyone have any advice?