What are you doing with the tubing? If your making a frame and using 1" tubing with a 0.65" wall you can bend that without any type of bender, just find something of the shape you want to bend it into and put the area you want bent over or under it and put your ars into'it! Or do it with a torch and either a wooden or steel form/jig or a hydraulic pipe bender. you could use both methods with anything of any size. I build motorcycle frames using that method. Make sure each side is exact and each bend is exactly the same and make sure everything square, the same measurement. If you don't it will not only be a rough ride, but also very dangerous at high speed.
HK
HK