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I show how to repair a bent chainring (chainwheel) on a bike. I bought this bike used (A vintage Legnano), but it needed some work. The chainring was bent when I got it. The tools I used were a screwdriver, an adjustable wrench, and a VAR Chainring Straightener tool. But the job could have been done with just the first couple tools. I could have used a travel dial indicator as well, but I don’t currently have one. At worst, if I was not able to straighten the chainring, then I would just replace it.