After my usual weekend morning ride with the gang, I was cruising home. Starting out from a stop sign, my chain broke, and I managed to stay upright. Whipped out the multi-tool & repair link, fixed the chain and continued home. Next stop light, the chain broke again as I was starting up. Again, I managed to not fall. At that point, I gave up and called the bride for a ride.
This is a Wipperman 10sX chain, with about 1100 miles on it. Minimal wear by my gauge & regularly lubed with ProLink Gold. In both cases, an outer side plate broke around the pin hole. I have never replaced a pin, always using Wipperman Connex links to join the chain. The two breaks were 9 links apart and don't recall ever doing anything that could have kinked the chain, nor was I really pulling hard when the chain broke.
A search turns up some other Wipperman breaks. What say you?