How much play is no...
 

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[Closed] How much play is normal in a front mech / derailleur pivots?

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I can't find a google answer to this so I hope its not too obvious!

Noticed today a 2 year old XT front mech is noticably wobbly around it pivots. It moves a few mm in and out in middle ring ("in" only in outer and v v). It's firm to the frame. It still shifts ok. My other ones have no noticalbe "play".

Do I need to sell some organs now - or can I wait a while?


 
Posted : 17/05/2011 9:33 pm
 GW
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old skool top swing mechs = no play
shitty modern lower link ones = loads


 
Posted : 17/05/2011 9:39 pm
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Grrrr- you've come back with a Q! I'll have to go outside now and figure out which I have. 🙂

Edit - ok - the clamp is roughly at the same level as the chain on the middle ring, and the cable enters/pulls from above. Does that make sense?


 
Posted : 17/05/2011 9:42 pm
 GW
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not a question, simply a statement.


 
Posted : 17/05/2011 9:44 pm
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if it shifts ok then whats the problem


 
Posted : 17/05/2011 9:45 pm
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if it shifts ok then whats the problem

Possibly none - thus the question. Not being cheeky, but it didnt have any play before so I'm wondering if I need to budget.

@GW- my earlier edit missed your reply - sorry


 
Posted : 17/05/2011 9:47 pm
 GW
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Edit - ok - the clamp is roughly at the same level as the chain on the middle ring, and the cable enters/pulls from above. Does that make sense?
= shitty modern low link one.
pish design, old skool ones are still readily available BTW (look for the word "Conventional" in the description).


 
Posted : 17/05/2011 10:10 pm
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they wear. deore wear quick, xt seem to last a good while. IME deore are wobbly after a few rides....but last a few years before they don't shift well at all. XT last much longer.
Always worth stocking the spares bin when the wiggle/crc sales are on


 
Posted : 17/05/2011 10:28 pm
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Thanks GW. Now I'm getting somewhere.

So I know I've got a shitty low link one - how knackered is it? A few mm in the middle ring?

Doesn't sound good to me 🙁


 
Posted : 17/05/2011 10:29 pm
 GW
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I'm not psychic 🙄
if there's so much play it doesn't do it's job (or just plain annoys you) replace it, a decent new conventional mech can be had for about £15 online


 
Posted : 17/05/2011 10:42 pm
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If there's a few mm of play in a topswing mech then it could be brand new. GW is correct. They are total bobbins. If it will work on your frame, conventional swing is the way forward. So much so that it's actually a consideration for me when picking a new frame.


 
Posted : 17/05/2011 10:55 pm
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Thanks guys.


 
Posted : 18/05/2011 6:01 am
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Could only use a topswing on my frame, so bought a decent one (XT), and made a mudflap out of an old innertube to shield the pivots, just ziptied to the frame.Got to be at least 5yrs old, ridden in all weathers 3 times a week, and still going strong.


 
Posted : 18/05/2011 6:58 am

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