Originally Posted by
52telecaster
... You can even make your current 52 into a chaingaurd by grinding off the teeth on a belt sander.
I used a saber saw to cut off the teeth. Then put the ring on the crank and turned it by hand for maybe 10 minutes while holding a file on the cut edge to smooth down the rough cut. The aluminum clogged up one or two saw blades, but I had plenty so that was not a problem.
After the photo was taken, I sprayed it black to match everything else. This is on my Rohloff bike, thus no front derailleur, only a single ring.
