WillWork4Parts
I live for the CABE
Unfortunately they're just built with slop in all of the bushings. This is why I stopped on the 24" Krate project that I have, it's just not an enjoyable ride.
Clamp on reflector brackets are too weak to add any rigidity. You could crimp a flat spot in a pair of truss rods like this at the crossover and use sissy bar clamps at the 4 ends to make the bar extra rigid, but I'm pretty sure you'll still be left with a fair side to side twist at the seat bushings.
Not Schwinn seat here, but the closest thing I could grab for an example.
Clamp on reflector brackets are too weak to add any rigidity. You could crimp a flat spot in a pair of truss rods like this at the crossover and use sissy bar clamps at the 4 ends to make the bar extra rigid, but I'm pretty sure you'll still be left with a fair side to side twist at the seat bushings.
Not Schwinn seat here, but the closest thing I could grab for an example.