Chain droping
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Chain droping
Postby jamesn184 » Sun Jan 21, 2018 7:28 pm
I started to suffer chain dropping whilst on the small chain ring and getting out of the saddle to climb up a hill.
I have replaced my chain and cassette, but still have the same issue.. the only difference I noticed was it wasn't as clunky.. you could sorta feel that I had to replace the chain towards the end..
The only thing I can think of next is maybe my chain rings?
I'm not sure on how many km's I've actually done on them either
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Re: Chain droping
Postby Trevtassie » Sun Jan 21, 2018 8:37 pm
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Re: Chain droping
Postby jackthelad » Sun Jan 21, 2018 11:24 pm
or just single ring it, its the way forward
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Re: Chain droping
Postby hamishm » Mon Jan 22, 2018 10:57 am
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Re: Chain droping
Postby CKinnard » Mon Jan 22, 2018 11:15 am
then consider how many k's your chainrings have done. they should be good for at least 20,000 if you have maintained the bike well.
finally, check the frame for cracks that might be flexing it excessively with the extra load of climbing. frame flex distorts the chainring's alignment with the chain.
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Re: Chain droping
Postby Duck! » Mon Jan 22, 2018 11:24 am
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Re: Chain droping
Postby jamesn184 » Tue Jan 23, 2018 2:02 pm
I can nurse it over a hill most times if I stay seated on the saddle.. It's only when I get out of the saddle it will result in a dropped chain pretty much straight away.. only when in the small ring tho..
Not going to be cheap to source chain rings either -_-
I did the chain test.. the links separate but not by much
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Re: Chain droping
Postby eeksll » Tue Jan 23, 2018 5:41 pm
I assume you have adjusted with the limit screws on the front derailleur.
Edit: and the FD isnt too high.
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Re: Chain droping
Postby ColinOldnCranky » Tue Jan 23, 2018 9:08 pm
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Re: Chain droping
Postby Duck! » Tue Jan 23, 2018 10:34 pm
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Re: Chain droping
Postby headasunder » Thu Jan 25, 2018 9:43 am
ThisDuck! wrote:I repeat: Worn ring/s.
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Re: Chain droping
Postby CKinnard » Thu Jan 25, 2018 10:41 am
you can't determine the km's in the chain if you bought them used.
the only ambiguity is more often the larger chainring wears quicker than the inner.
however, if the person you bought the bike from did a lot of hills, and/or was heavier than average, or had some other reason for riding more in lower gears, that could explain faster inner wear.
what brand are the chainrings? some are made from softer metal.
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Re: Chain droping
Postby Kronos » Mon Jan 29, 2018 11:51 pm
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Re: Chain droping
Postby jamesn184 » Sun Feb 04, 2018 1:50 pm
Kronos wrote:In the short term be more sympathetic on your gear shifts and lift off a little before you change gears. In the long term you might need a new chainring and chain. These are the usual culprits. I've only ever been generally responsible for dropping a chain when I've shifted like a gorilla.
It doesn't drop when I shift.. only when I start climbing a steep hill.. and usually when I am out of the saddle..
Ill take some pictures tomorrow of the chainrings.. but I think they have done around 10,000km or less
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Re: Chain droping
Postby CKinnard » Sun Feb 04, 2018 2:03 pm
and what rear gear do you think you are in when you get out of the saddle to climb when this happens? the middle 4 or 5 rings, the outer (smaller) 3, or inner 3.
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Re: Chain droping
Postby jamesn184 » Sun Feb 04, 2018 5:59 pm
drops off the small ring onto the towards the frame and always in the lower gears 1 to 3CKinnard wrote:to what side does the chain drop to - towards the frame or the large chainring?
and what rear gear do you think you are in when you get out of the saddle to climb when this happens? the middle 4 or 5 rings, the outer (smaller) 3, or inner 3.
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Re: Chain droping
Postby CKinnard » Sun Feb 04, 2018 9:27 pm
btw, I just want to confirm because you haven't specifically said yet, you are talking about a road bike with two chainrings, not a touring or mountain bike with a triple chainring.jamesn184 wrote: drops off the small ring onto the towards the frame and always in the lower gears 1 to 3
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