Well i put up a thread probably about 6 months ago of my red tall bike that was about 5ft tall to the top of the seat. I added an extra bike so it 3 bike frames on top of each other. And this one is 7ft to the top!! Heres some pics of the project. It still has to be painted. If you can tell i extended the rear on the bottom bike to stop the bike from flipping over lol. Tell me what you guys think. Can upload all the pics now because i have to resize them. so ill put them up later