I made a thing
As I'm currently trying to figure out what Chainring might fit into my frame at the according Chainline I went full nerd-mode and drew some Gauges to print in my 3D-Printer.
As i was at it i did the Gauge for Shimano and SRAM Cranks
You can find the STL files on Printables.com
https://www.printables.com/model/1356248-chainring-size-gauge-for-shimano-sram download them, print them as you wish and/or let me know what you think!
