This Campagnolo crankset came from a recent estate sale in central Florida. I don’t know a thing about bikes or bike parts, but I tried my best to research/compare before making this listing. I will be listing a TON of vintage (some new in bow/new without tags) bike parts and accessories. Please feel free to ask me questions ahead of time. I used info from similar listing to help fill in certain info I wasn’t sure about. Campagnolo Crankset 53/41T NEW Old Stock 170mm. 9/16 x 20 F New, never used. One tooth has a micro ding mark from storage over the years, barely noticeable. Great the deal on a hard to find size! Please let me know if you have any questions.