Originally Posted by
RCMoeur
Success!!
By my recollection, in my 45 years of "serious" riding I have had three chain failures while riding - one due to master/missing link fatigue, one on a trail, and the last while street riding where a reinserted pin that looked just fine on the workstand suddenly decided it wasn't.
In all the cases except the missing link failure, it was rather handy to have the chain tool.
So, extrapolating from your experience because that's totally how statistics works, I will have at least one chain failure in the next 25 years. When that happens, I shall be prepared.
EDIT: I just randomly remembered that I actually
have experience a "chain" failure. I broke a belt on my SS CX bike during a race. No chain tool was going to help me with that one.