Noisey 105 Chain Ring

WindyRob
WindyRob Posts: 32
edited July 2007 in Workshop
i have a triple 105 9 speed set up on my bike. the middle chainring has what appear to be 4 small blades that sit just below the teeth. the chain clicks against these blades with each peddle , i.e. 4 times a revolution. it is not a particularly loud noise but as i'm sure you can understand it is really beginning to P!$$ me off

does anyone know:
a) what the blades are for
b) if i change to a shimano chain from the high end SRAM 9 speed chain i have will this stop the noise

any advice much appreciated

windy
Wot, get up early and ride to work?!.... Are you mad?

Comments

  • Monty Dog
    Monty Dog Posts: 20,614
    The 'blades' help to lift the chain on the up-shift from a smaller to bigger chainring - without then the shift is far more sluggish. Are you sure your chain isn't worn excessively? Check out www.parktool.com for bike maintenance tips.
    Make mine an Italian, with Campagnolo on the side..
  • maddog 2
    maddog 2 Posts: 8,114
    sounds like your ring and/or chain are worn.

    Park chain checker - every toolbox should own one.
    Facts are meaningless, you can use facts to prove anything that's remotely true! - Homer
  • trekvet
    trekvet Posts: 223
    WindyRob wrote:
    4 small blades that sit just below the teeth. the chain clicks against these blades

    My set up is the same and I took it apart and filed the tops off so they just cleared the chain (Connex). Even all new they did it, so nothing to do with wear. Better any slight increase in change-up time (I don`t race), than inceasant clicking.
    The Wife complained for months about the empty pot of bike oil on the hall stand; so I replaced it with a full one.
  • WindyRob
    WindyRob Posts: 32
    My set up is the same and I took it apart and filed the tops off so they just cleared the chain (Connex). Even all new they did it, so nothing to do with wear. Better any slight increase in change-up time (I don`t race), than inceasant clicking.
    was the gear you were using all shimano? nice to know i'm not alone :!:

    i'll get the file out...

    Thanks

    Windy
    Wot, get up early and ride to work?!.... Are you mad?

Categories