Front derailleur adjusting

bikeit65
bikeit65 Posts: 1,001
edited August 2010 in Workshop
I have triple chainrings on my road bike, but i want to set it up correctly so i was fiddling about with it earlier, so now whenever it is in the middle chainring all is okay, and in the smallest chainring the chain only rubs on the derailleur guard in one or two gears, but whenever i shift it up to the biggest chainring there is a lot of chain rubbing on the derailleur guard, so what do i need to do to correct this?
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Trek Domane SL7 GEN4
Planet X RT58
Cannondale CAAD 10 2012.
Pain.. Is weakness leaving the body.

HATING LIFE-CYCLES FROM 2011

Comments

  • ricktabor1
    ricktabor1 Posts: 272
    With the chain on the smallest sprocket at the back and on the large chainring turn the screw marked H anti clockwise until the derailleur sits out from the chain.
    Got to get up to get down
  • father_jack
    father_jack Posts: 3,509
    check the end stops too.
    Say... That's a nice bike..
    Trax T700 with Lew Racing Pro VT-1 ;-)
  • keef66
    keef66 Posts: 13,123
    Is the cage parallel to the chainrings? if not, loosen the clamp and twist it until it is.
    Is it the smaller cogs / big ring where you get the rubbing? If so, it sounds like it's not moving over far enough on the big ring, so it's either the upper limit screw needs backing off a bit, or you need a bit more tension in the cable; try a twist of the cable adjuster on the downtube (anticlockwise)