Got in a fast 30 miles today - first ride of the season for the gold Colnago Mexico. I was about a mile from home when I accelerated hard out of a bend on the Sammamish River Trail and my chain began to grind, then hop along madly. I shifted over a few cogs and everything was okay. Hmmm...

When I got home and took a good look, this is what I found:



I was pretty sure I'd broken the cog - but not 100% because although I've done it three times before, those other times were all alloy cogs - this bad boy is all steel. @pastorbobnlnh I need a rescue (this thing is almost NOS, be a shame not to just replace the cog and put it right back to use).

I'll admit it felt kinda cool to know my body is still capable of breaking things

DD