Originally Posted by
mparker326
They used a hanger to hold on the derailleur. I had a 76 Super Mirage and it was 124 mm spaced. A track frame has the dropouts facing backwards. I'd wager the one you saw is a forward facing dropout.
Yeah. And had the eyelets for a rack above the dropout. Definitely not a track frame. The 124 seems about right with the primitive method I had to measure it.