So, I build a Trike in the spring and rode it all spring and summer, and now into the fall. I always wondered what it would be like to drive on two wheels instead of three, so here is my next build. However, I do not need two bikes so one this is completed it will be going to my friend, who is also helping construct the bike. I really liked the engine I had on my trike (horz. honda 50cc clone), so I got another one (fairly cheap too) and this is where the build starts. I will keep it updated pretty much daily. For you guys that havent seen my Trike: http://motorbicycling.com/f44/jschattes-trike-build-26063.html One thing we are confused about is where to source a gas tank. It would need to be at least 3L. Any suggestions on this?