Thanks a lot :D The length from the seat to the BB is 3.5 to 4 feet, this first one was a prototype for my girlfriend who is a bit on the short side :P so I had to move the seat up a bit, scored me some brownie points though because she rides it EVERYWHERE!
Glad you like it, I've since put brakes on the front, it has a coaster hub on the rear, changed a few other things as well. Will post pics as soon as able. :D
A good old school way to bend precise is to cut out the arch with some 2x12 and anchor it down, then use the arch of the wood to curve the steel. Did it for years that way until I invested in a H.F. roller. works pretty good, should work perfect given the fact you've filled the tube. Good luck...
Re: 1948 Schwinn "Project Motorbike"
This bike is SIIIIICK! love the lines, that extra few inches makes her look just stellar. Monarch springer tops it off. Definitely my favorite looking bike seen on the forum for a while. :D
This frame measures 4' 5'' from axle to axle all made from cold rolled mild steel. If you have any ideas for a frame you would like to see just PM me with some ideas or a rough sketch and we can get you rolling!