Chain is riding up on casette and shifting inconsistently it's winding me right up! I've tried adjusting the mech till I'm blue in the face. Tried taking the chain off and degreasing and checking for stiff links and twists of which there was none. Changed the mech hanger. Cleaned and lubed the mech. Swore at it, etc. It always seems to end up riding up on the top 2 rings, and also doesnt shift up or down well in the mid range. The cables are about 3 or 4 10 mile rides old and seem to move in and out fine.
Pictures of the chain mugging me off here: http://s37.photobucket.com/albums/e100/hexhamstu/
Any clues?
It's not the chain or cassette.
Possibly hanger bent, cable issues.
Changed the hanger 😕
IS it the right chain?
Yup, it worked flawlessly for 100 miles, then out on a ride and the chain jams up on the front rings a bit, and it starts miss shifting. It's all down hill to home anyway to finish off the ride and thats the last time it was out!
It's either the chain or the cables.. or a mixture of both... have you got another chain to try on it?... you have my sympathy too, stuff like this is annoying...
Are the jockey wheels OK?
Is the chain correctly routed around them?
Are you sure the cable outer is not split or damaged?
Is the inner not freyed somewhere?
How much gump/debris is there floating around inside the shifter itself?
Are you sure the chain has zero defects and is the correct size (8/9/10 speed)?
I have seen similar funny side effects from bent hangar which looked perfectly straight... After inspecting and double-checking everything - get somebody with fresh eyes to look at it (LBS?).
I think it must be the chain, it got jammed in the front rings on the ride, it must have twisted it. It didn't look twisted when I took it off to inspect it though.
The jockey wheels are all moving freely as is the cable. Might have a look inside the shifter itself, hadn't really thought of that.
Twisted link gets my money now.
New chain it is then.
They are easy to spot and straighten.
I've had the chain off and inspected it, couldn't see any twisted links...
Bent mech? Bent sprocket? (Both happen.)
My money would be on mucky cables though.
If you can't see a fault with tIe chain then a new chain won't make a difference.
My mate has reverse action on a Marin doing exactly the same, last week on trails I thought hanger was bent so we pulled it a bit and wound the low screw so he lost bottom gear and it was better , but LBS can't cure it , I wonder if they realise its reverse action mech? We might just have to spend some time on it instead of ride an' bodge.
sticky freewheel
IMO that cassette looks ****ed.
I take it when you say '100 miles old' you just mean the chain? New chains and old cassettes rarely work.
Try checking the stop screw which sets your rear mech tension/position front to rear.
I have know this either be snapped off or badly adjusted, cuasing similar symptom to that which you describe. Should be able to spot as the top jockey wheel will look too far forward.
Everything is 100 miles old, I replaced it all together. Mech, cassette, chain rings, chain, shifters, cables. Just tried a new cable, no joy I'm not sure the shifter is working correctly I'm going to try the saint one off my downhill bike.
Good point about the B screw , it did look as if it was falling a bit short to the hanger, must mess with it this afternoon.
My LBS has a hanger alignment tool, might be worth having it checked?
I guess its a power link that joins it?
I had something like this. The Chain I have has a weird joining link and there is a definite way up. I had it the wrong way up for a while and it caused problems like that.
might be worth a look at
Think it might have been a few things, but the main part of it is the complicated cable routing on the lapierre and the weak spring on the SLX. I had a cable oiler in there so I replaced the whole outer and removed that and it seems to have solved it. I did take the shifter off my 224 and I have to say the saint stuff and the cable routing on the 224 made the SLX equipped lapierre look stupid and annoying.
I also removed the sram power link and replaced it with the shimano snap off link thing.
Right first time!
But the problem still exists to an extent, even with a brand new cable. The cable routing just has too many twists and turns. I've tried to leave it looser this time around the bottom bracket area but the cable still doesn't move completely freely through the outer. Especially in comparison to the straight routing on the 224.