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chain rubbing on front derailleur

swod1swod1 Posts: 1,639
edited April 2013 in MTB workshop & tech
I've noticed the chain has started to rub the front derailleur on my bike when in the middle and top chain ring when i'm in 8-9 gear on the rear cassette.

The chain doesnt come off or anything like that and the front derailleur shifts fine between the 3 rings.

I've looked at the park tools repair guide and i dont need to setup from scratch and just wondering if i can tweak the h screw as its the chain side that faces outwards where it is rubbing to move the derailleur out a little ?

Also how tight should a chain be on a 9 speed setup because i think its too loose and i'm thinking of fitting a chain tensioner.

Any advice would be great.

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