Originally Posted by
beech333
Yeah, I tried that.
I did some digging around and also found out that some came with some sort of plastic insert to presumably protect the frame. I imagine those being even worse. So far, I think I have mounted 4 of those cages, and I got a longer bolt for all of them.
Sounds like a shim for installation on French/Metric tubing.
I've always just started with a longer bolt and then refitted the original bolt, same as with most clamps for two-bolt cages.
My favorite by far is the REG cage with spring latch and two integral clamps, which seem easier to install.