schwinn locking fork question

[CCR]

Will a locking fork work on any frame or do you have to modify them ?

 

[cashman]

It locks into the bottom bearing cup. There is an alignment peg inside the frame head tube that holds the bearing cup in place. As long as the head tube of your frame matches the length of the fork steer tube, you should be able to do the mods neccessary to make it work. Thanks!!!

 

[B607]

Post war Schwinns have the notched cup and tab welded in the frame. Pre war Schwinns have forks that lock by the bolt extending into the frame down tube. The prewar bolt also is drilled differently and sticks out farther when you turn the key. Once it is locked, the postwar has very little movement side to side with the handlebars. The prewar moves quite a bit side to side, which I think was a temptation to try and break it by slamming it back and forth against the bolt. I bought a jammed up prewar locking springer once that had the locking bar bent nearly 90° by someone trying to break it. I imagine that's why they changed it after the war. Gary