Originally Posted by chaadster

Would not the quick link literally be “the weakest link?” Would it be surprising that if a chain breaks, it would be at the at QL?

I don’t generally expect chains to break at all, especially 11 speed chains, so there’s that, but it’s not clear the brand, age, model, mileage, or conditions either you or phrantic09 are talking about, so it may be unsurprising those chains broke.