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About to start adjusting my rear derailleur settings but looking for a bit of guidance before I start.
(9-speed XTR cassette) All parts and cables relatively new (250-300miles) - but the chain tends to slip when in mid-range on the cassette when under higher pressure/torque(irrespective of whether I am in big/middle/granny).
Any advice welcome...before my fiddling makes it worse!
slip between sprockets or on a sprocket?
as for adjustment instructions these are on the http://techdocs.shimano.com website.
Have you checked for chain wear?
Is it grinding ie slipping over the same sprocket or is it switching between sprockets?
The chain is new too (all about a month old) - replaced together.
I think the chain appears to be riding between the sprockets - occassionaly jumping out of gear and then failing to pick up a new one...
Coulde be an indexing issue. Could also be the screw on the back of the mech that adjusts the distance between the top of the jockey and the bottom of the cassette sprocket. If this is too great it can cause slippage when you mash it because you have less chain actually engaged on the sprocket. Check out the park tools website for good step by step instructions. New chain on worn cassette is another possible cause.
mine chain was doing that when i got a new casette chain and chainrings, have u taken any links out ? i think it still does it on my bike but thats only when im in like 4 or 5 gear going uphill but who does that? i dont, its always 2nd or 1st loll
Thanks all, will keep an eye on it tonight and check out the Park and Shimano links...
Ta!