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Looking for some advice.
Recently replaced my inner and middle chainring, chain an cassette. All shimano deore.
I have an SRAM powerlink on the chain. When in the smallest ring, the powerlink tends to catch against the middle, causing chain suck. Powerlink is a 9 speed as is the rest of the stuff. I could grind a tiny wee but if metal of the middle ring where contact is made, but I suspect a better solution is available.
Any ideas?
Maybe double check the chainrings are the right way round (i.e. they only have markings on one side), I remember once I fitted a middle chainring the wrong way round and the spacing was very tight.
Shimano chain? Not sure on compatibility with the powerlinks with them, especially as those chains I think are directional.
Also, make sure the powerlink is pulled fully into lock position, else it can be stiff and jam.
Next time, I'd recommend a KMC chain. They make Shimano chains anyway, and they're just better quality 😀 (personal opinion).
deadkenny - MemberShimano chain? Not sure on compatibility with the powerlinks with them, especially as those chains I think are directional.
Powerlinks are usually fine and 9-speed Shimano chains aren't directional. 🙄
I'd take the granny ring off an remove any burrs that may be present
As above, there's no issue with 9spd Shimano chains and Powerlinks [or even 10sp chains]
The chain rings are, according to the instructions, on th right way round. The bulges on the middle ring appear just enough to catch the powerlink. All other links fine. I'm stumped.
d45yth - Member
Powerlinks are usually fine and 9-speed Shimano chains aren't directional.
Cheers. Been used to 10-speed for some time and so many warnings about directional chains for Shimano etc 😀
A step forward - I have figured out whats wrong. I just have no idea how to fix it!
New chain ring is not sitting flush with the crankarm, leading it to sit far to close to the inner ring and causing the chain to catch.
On the old chainring, the bit of metal that surrounds the bolt hole is much thinner than on the new one. The new chainring can therefore not "sit" on the grooves in the crankarm. Should have notice it before, but you live and learn.
option1 - find out why what I thought was a straight replacement, is not in fact a straight replacement.
Option 2 - break out the dremel and make this bad boy fit.
Opinions?
Sounds odd. Don't resort to option 2 just yet 😀 , sounds like something's not quite set up right still. If it's a standard middle ring there shouldn't be a problem but maybe there's a compatibility issue with the other ring or the spider or something, don't know.
Photo?
For what it's worth, the 'sit' of the ring issue sounds a bit like the issue I had sticking a 'single' ring on my 3x spider when I converted it to 1x, but that's a single ring (involved the Dremel). If you've got bumpy bits on the ring then should be a middle ring (i.e. derailing type) rather than a single. *but* perhaps you have a single not a middle?
Definately a middle - checked the order and part number to make sure I didn't do something stupid. Looking around the interweb, including the archives here, seems like quite a common problem, usually solved by option 2 above. Couple of mm off each tab should do it.
Will try to get a picture up in the morning.
For example [url= http://singletrackmag.com/forum/topic/swapping-around-chainrings ]SingleTrackWorld - Dremels Rule[/url]
Yeah,this problem is often sorted out on a weekly basis! It's usually when we can't get the exact replacement. soft jaws in a vice will hold the ring tight enough to take a round sided file across it. I usually just do a finger scribe with a pencil to mark the arc approx 1.5mm inboard on all 4 tabs next to the fixing holes. Pain in the ass but it should be the cure.
Hopefully you haven't damaged the ring after tightening all 4 bolts.. :o/
Holy Chainring Enlightenment Batman!
Here is what I bought: [url= http://www.chainreactioncycles.com/Models.aspx?ModelID=38192 ]Deore M532[/url]
Here is what I should have bought: [url= http://www.chainreactioncycles.com/Models.aspx?ModelID=5699 ]Deore 510[/url]
You can see the difference in the thickness of the metal next to the bolt hole that marries up to the crank arm. You can also see from the comments on the first link that others have made the same mistake and filed it down to make it fit.
Quite like the idea of ordering the right part, but I am short on time before Tour De Ben Nevis next weekend.
My Ring seems fine 😉
Ah yeah, makes sense. Not quite sure what the point of the 532 is really then. The 510 is a classic and a great ring that seems to last forever. Only replaced it because I went single ring.