free spinning jockey wheels?

holroyd74
holroyd74 Posts: 20
edited February 2011 in MTB workshop & tech
Hi all,
Having replaced both worn jockey wheels on a shimano xt m772 rear derailleur, with shimano replacements. Without the chain fitted, when both jockey wheels are spun with the finger, it is noticeable that the guide pulley jockey wheel (upper) isn't as free spinning as the tension jockey wheel (lower).

Is this normal for this type of derailleur?

Any replies much appreciated

Thanks

Comments

  • nicklouse
    nicklouse Posts: 50,675
    that is normalish. as it has sideways movement it can seem to not spin quite as well.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • ftwizard
    ftwizard Posts: 253
    Yes, that's perfectly normal. It doesn't spin as such, but should turn smoothly.
    Orange 5 Self-Build
    Commuter Rockhopper
  • holroyd74
    holroyd74 Posts: 20
    Thats cleared that up for me. Thanks for the replies
  • stubs
    stubs Posts: 5,001
    Just make sure it does slide side to side, had an irritating chain clicking problem. Took me a while to realise the top wheel was spinning okay but wasnt moving side to side took it off cleaned crud out regreased and problem solved.
    Fig rolls: proof that god loves cyclists and that she wants us to do another lap

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