
…So this doesn’t happen to you mid-ride.
While bike shops and warranty departments hate to hear it, this truly did happen while Just Riding Along (aka JRA). Coming around a corner, I put a mild amount of acceleration into my ride and instantly heard and felt a crunch. The bike came to an immediate stop. Looking down, I assumed the chain had simply fallen off or gotten jammed. It took a second to see what had really happened, and another few seconds to determine why.
Quite simply, one of the chainring bolts had apparently been missing for a while. Normally, having one bolt missing would lead to cyclical chain rub when at the extremes of the cassette with each pedal stroke. Whether it’s a testament to the stiffness of high end rings from SRAM (and, likely, other brands, too) or just weak legs, I don’t know, but I didn’t experience any early warnings until *POW* things went south quickly.
Upon inspection, I did find the second chainring bolt that had popped out and actually caused the small ring to fold under a (honestly) fairly light pedal stroke. When I finally pulled them off, both of the other two bolts were in various states of looseness, too…
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