I have just knocked Gen off the repair stand : Her landing was cushioned by the mech hanger, which unsurprisingly bent. Using a bit of brute force I bent it back, but now it has telltale flaked paint. The aluminium under the paint doesn't appear cracked, but I am aware that it is compromised now. My question is - how much load does the mech hanger have to take? Even at full power is there much load on the rear derailleur? It seems to me that the top run of the chain, thus the chainrings and cassette are heavily loaded, but the derailleur just keeps the bottom chain run from flapping around. I don't have the money to buy a new hanger this month, and am wondering if it will suddenly and disasterously snap 50km into a club run.