front mech too low in big and to high in granny!?

bluechair84
bluechair84 Posts: 4,352
edited February 2010 in MTB workshop & tech
This is a new one to me. When in the big ring the mech is only just clearing the teeth - the chain is being pressed againt the teeth when down shifting making for a less then perfect shift. But in the granny ring the mech is too high with the chain catching on the horizontal part of the chain, being lifted ever so slightly. Moving the mech high or lower to fix one ailment will only make the other issue worse. Don'e know the teeth range but it's a standard XT chainset...

Any recommendations? I can upload some pics later if that helps. cheers in advance.

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