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Chain snap!(7 posts)

Chain snap!Rich_Racer
Nov 19, 2003 7:30 PM
I've been cycling for many years but I've never had chain snap until today. There was only a few hundred miles on it. I came off my bike and almost ended up under a truck then had to walk a couple of miles to get home. I suppose it could have been worse then! Anyway I'm pretty annoyed. Should I expect my LBS to replace the chain - preferably with a different brand?

Rich.
An example of why...zero85ZEN
Nov 19, 2003 7:46 PM
...I am my own mechanic. IF anything like this were to ever happen I know who to blame. I just look in the mirror. Of course I tend to take extra care, paying attention to details, when I work on my bikes. Especially when I install a chain. Of course when I'm drinking beer and working on my bike...well then I have to check things over a bit the next morning.

:-)
re: Chain snap!Matno
Nov 19, 2003 8:22 PM
Well, like you, I've never had that happen (yet), but it's always a possibility. Not uncommon for some riders, in fact. That's why I never ride anywhere without a chain tool. Most multi-tools have one that will work just fine in an emergency. Won't keep you from almost crashing when it snaps, but it will prevent the 2-mile walk home!
It happenspitt83
Nov 20, 2003 5:23 AM
But much more frequently on the mountain bike. I've done it on the road bike too. Often happens when you shift under load or really flex the chain stays while applying heavy torque (Standing on a hill and then shifting). I now carry a chain tool multi, some spare links and Shimano replacement pins on the road bike too.

I don't think you should "expect" the LBS to replace the chain; bad luck. You don't mention the cassette wear. You probably have heard this before, but a worn cassette can kill a good chain and vice-versa. Make sure both are in good condition. Pony up another $30 and ride on.
If you had a chain tool you would have saved the walk-nmColnagoFE
Nov 20, 2003 7:40 AM
Done it three timesmoneyman
Nov 20, 2003 8:01 AM
Once in a MTB race - shifting gears, high torque, SNAP! Had a chain tool and didn't know how to use it, effectively ending my race. Then on a road bike, shifting going up a hill, standing on the pedals, SNAP! Had a chain tool and continued with the ride. Then Sunday the chain kept skipping. I thought my cable was loose, but then I figured it was a tight link. It kept getting tighter, then SNAP! Chain jambs in tight between the inner ring and the chainstay. My bike is plastic, so I didn't want to force things too much. Got out the cell phone and called for a ride home where further examination showed the culprit. Luckily it was at the end of a very nice ride.

$$
re: don't shift under loadcyclopathic
Nov 20, 2003 4:38 PM
it happens when side plate gets cought btw chainring teeth.
Usually weak pin, in place where chain was joint. Just fix it it'll be all right it doesn't happen that often