I scored this very big brazed Schwinn frame from a neighbor who knew I liked bikes.
This frame measures 23 inches from bottom bracket to the top tube and has a 8" head tube. I'd like to hack this frame up and make it something special. I have a threaded suspension front fork ready to go.
My goals would be a 48" wheelbase, with the pedal bottom bracket 11" above the ground. To get the frame down to size, I plan to chop 3" off the head tube and the seat tube. The discrepency in tube angles may allow me to lay the frame back a bit, making for more motorcycly trail.
How to reconnect the tubes after the chop? Might just fab a piece of tubing over the head tube sections and solder it. Maybe MIG weld it. Still thinking.
I want to leave the seat tube unconnected. Fill the gap with a stainless steel coupling and stick it with two 1/4" Grade 8 studs. Would still be solid and would allow the vibrations a place to go.
I have a cool design for a swing arm! Done some preliminary tests. I'll have a solid axle with a bushing to allow movement. I'll hack off the seat and chain stays and run metal back over the wheel for a cafe racer style seat. The swing arm will connect to the upper frame via small shock absorbers. Full suspension! The trick is to center the swing arm axle with the motor drive sprocket.
Maybe I can fab my own custom shock absorbers. I have two springs that would be perfect for the task...
This frame measures 23 inches from bottom bracket to the top tube and has a 8" head tube. I'd like to hack this frame up and make it something special. I have a threaded suspension front fork ready to go.
My goals would be a 48" wheelbase, with the pedal bottom bracket 11" above the ground. To get the frame down to size, I plan to chop 3" off the head tube and the seat tube. The discrepency in tube angles may allow me to lay the frame back a bit, making for more motorcycly trail.
How to reconnect the tubes after the chop? Might just fab a piece of tubing over the head tube sections and solder it. Maybe MIG weld it. Still thinking.
I want to leave the seat tube unconnected. Fill the gap with a stainless steel coupling and stick it with two 1/4" Grade 8 studs. Would still be solid and would allow the vibrations a place to go.
I have a cool design for a swing arm! Done some preliminary tests. I'll have a solid axle with a bushing to allow movement. I'll hack off the seat and chain stays and run metal back over the wheel for a cafe racer style seat. The swing arm will connect to the upper frame via small shock absorbers. Full suspension! The trick is to center the swing arm axle with the motor drive sprocket.
Maybe I can fab my own custom shock absorbers. I have two springs that would be perfect for the task...