- M8000 Derailleur slack chain
I just put on an old m8000 mech on my bike and the chain is saggy. The chain is sized correctly. It looks like the mech isn’t pulling back all the way to take up the slack. If I push the hanger back it will take up the slack but as soon as I change up and back down again the same problem re-occurs.
Is this a known problem? Is there anything that can be fettled?
Cheers,Posted 3 months ago
That happened to my 875 mech last week. I took the cage off, turns out that the spring was rusty and bent. Cleaned it all a bit, went some way to getting the spring right again with some pliers, greased it all and set the spring in the second hole (more tension) in the cage, works perfectly now.Posted 3 months agoqwertyMemberGillesMember
Wow it must be a sign of god – I just found the same doc that qwerty is referring to like 5min ago. I didn’t know step 3 and 4 on page 20 and 21. I’ve learnt something. Step 3 on page 24 make me wonder if i can replace a broken plate with an old one not broken and have a new working rear mech.Posted 3 months ago
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