chain drop from 36-...
 

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[Closed] chain drop from 36-22

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Posts: 14
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Topic starter
 

hi gang.is there any way to resolve this problem.
even using a twin specific slx front mech thats adjusted spot on.
thanks all.


 
Posted : 10/04/2010 11:39 am
Posts: 65978
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Not being funny but it doesn't happen any more on either of mine than it did with 3 rings so I doubt it's adjusted right. Unless you have a lot of chain growth in your suspension design or something but the hemlock has a fair bit and it doesn't seem to mind. Did you shorten the chain to suit the double? Good tension will help keep it on.

What side is it going off? A bashring will completely stop it going off the top, or a I guess a chain device of some sort but I've never had any need. If it's going off the bottom, remember there's nothing different between a double and triple there.


 
Posted : 10/04/2010 11:51 am
Posts: 14
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Topic starter
 

hi northwind.it,s dropping of the bottom.it,s happened as iv,e changed from 32 to 36 outer.?
think you right there on shorten the chain.


 
Posted : 10/04/2010 11:56 am
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If you're sticking with a double definately get the chain as short as you can, it helps and it makes shifting nicer. But like I say, if it's coming off the bottom then the fact that you've changed the middle ring shouldn't make any difference. Unless it's dropping off only when you change down?


 
Posted : 10/04/2010 12:13 pm
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The problem with rear suspension and the 22-36 set up is that the chain bounces off the bottom alot due to not enough tension. So you can get a med or short cage rear mech to get the chain shorter but this still wont solve it.

The best bet is a chain device like a DRS or a better still if your a weight weenie or short on cash a Blackspire stinger. The string also doesn't require ISCG tabs. They work great you'll never drop a chain again.


 
Posted : 10/04/2010 12:23 pm
Posts: 14
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Topic starter
 

yer nothwind.only drops off when changing down


 
Posted : 10/04/2010 12:31 pm
Posts: 14
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Topic starter
 

dirtynap.if i fit a stinger will this resolve the problem as the chain is dropping of the top of the 22 when changing down.
ta bud


 
Posted : 10/04/2010 1:13 pm
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Hmm. Can you run the mech any closer to the chainrings? The inner plate should just naturally stop that from happening, or reduce it to a minimum at least. Also, is it possible that the mech's running a little high, creating a gap there?


 
Posted : 10/04/2010 1:35 pm
Posts: 14
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Topic starter
 

i,ll have a little fettle.but it,s adjusted as close as i can get it.
cant drop the mech any more as it sits about 1mm above the weld
(08 marin wolfridge)


 
Posted : 10/04/2010 2:17 pm
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Hmm. I don't have anything useful to add then, sorry! The SLX mech's definately the right tool for the job- triple mechs work fine but they're a pain to set up, the double mechs are lighter and so much less pernickety... but being top swing only is a downer, mine just barely fits on the hemlock for the same reason.


 
Posted : 10/04/2010 5:44 pm
Posts: 14
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Topic starter
 

ok thanks north/w.
the search for the truth goes on. 😉


 
Posted : 10/04/2010 8:05 pm