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My chain fell off ... is it my dufus shifting skills or ...(11 posts)

My chain fell off ... is it my dufus shifting skills or ...jmr986
May 31, 2002 12:28 PM
is it the new bike break in stuff. And yes it is a triple. I've heard alignment is more critical on a triple vs the double. The bike is less than a week old. Trek 5200 with Ultegra. If this happens more often Im swapping for a double.

SIDEBAR STORY: I was heading out for my shakedown ride. The wife asked "do you have your cell phone?" Nah I dont need it I'm not going far I'll be back in an hour!!! She insisted, well the chain fell off. And I had to call her and got lectured. Plus I called the bike shop and they stayed open until I got there. I tried to put it back on myself and was screwing up and didn't want to screw up my 4 day old $2,500 bike.

BTW I saw a fellow biker earlier in the ride we nodded and said hi. Well who rolls up while I'm at the side of the road? The biker I had passed! Naturally, he offered his assistance, but my wife was on her way. It's nice to be nice!
check the limit screwsmr_spin
May 31, 2002 12:33 PM
It could be your shifting, but if it happens a lot, I'd suspect the limit screws aren't adjusted right. Should be a quick and simple fix for a bike shop. For you, too, if you have the patience.
This has got to be a historical first everNo_sprint
May 31, 2002 12:43 PM
I have never heard of anyone needing to call home for a ride or go to a bike shop after having their chain pop off the ring.
This has got to be a historical first evergregario
May 31, 2002 12:59 PM
yeah. all I can say is.....wow, ummmm, ok......
In the future...laffeaux
May 31, 2002 1:25 PM
To put your chain back on, all you need to do is grab the chain and slip it back on to the cahin rings. Once it's on a few teeth, turn the cranks (with the wheel off the ground) and the chain will go back on. The only chain issue which might be a bit difficult is if the chain comes off the rear cogs and gets stuck between the cassette and the spokes - that can be tricky - otherwise, just put it back on. Other than greasy fingers, it's pretty easy.

Your LBS should be able to adjust the deraileur to prevent this in the future.
Helpful addendum to chain replacementretro
May 31, 2002 1:53 PM
We all had to learn, but it would be really embarrassing to have to phone for help for this again, especially on a bike that expensive. Once everything's adjusted, the easy way to put it back on is to grab the LOWER section, so you can pull against the rear derailleur and get some slack. Hook the chain on the lower part of the ring, then gently move the pedals backward until it hooks up.
Helpful addendum to chain replacementjmr986
Jun 5, 2002 1:54 PM
Well it happened AGAIN last night. But this time I followed everyone's advice and had it back on in oh 10 seconds!! Now
I see what everyone was talking about. Oh and retro thanks for the "push the derraileur" tip.

This makes twice in as many rides. Think it needs adjustment of the limit screws?
Shift it back onKerry
May 31, 2002 3:57 PM
9 times out of 10 (or maybe 99 times out of 100) you can just keep pedaling (slowly) and shift it back onto the rings. Obviously if you are pushing hard uphill this is not possible, so you turn around and ride downhill while shifting as though going back to the middle ring. Unless the chain jammed when it dropped, this is a simple thing requiring no dismount, no greasy fingers, no phone call home, and no help from those you're riding with.
jammed on the uphill ... jeez this is embarassing time to takejmr986
May 31, 2002 5:33 PM
the repair classes!
Could be a problem with a link in the chain...spyderman
Jun 1, 2002 1:09 AM
While standing next to your bike turn the peddle backwards. Watch the chain for any binding, note the link and either replace it, or the chain.

Not recommended, but a cheap fix is to work the kinked link side-to-side to loosen it.

If you're riding often, clean & lube your chain often...
Is it falling to the inside or outside?Len J
Jun 5, 2002 4:17 PM
If inside, I'll bet this happens when you are shifting from Middle ring to smallring in front while you are on one of the two largest cogs in back. Try shifting to the small ring while in one of the middle cogs & I'll bet it doesn't fall off. You need to have the lower limit screw adjusted and you need to have your chainline checked.

If outside, its the same problem in reverse.

Good luck

Len