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  1. #1
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    The teeth on the rear derailler wheels on my Mtb are worn down to almost a point. They were originally squared and flat. Does this create any problem in shifting or the position/angle of the chain in relation to the sprocket? My bike shop guy says don't worry about it and encourages me not to replace them. Would there be an advantage to replacing them?

    Thanks in advance.

  2. #2
    Giggity giggity! Dirtbike's Avatar
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    Sounds like they are worn out. He may be suggesting that you not change it because the bike might not be worth it. What kind of bike is it?
    Rides: 06 Demo8 II, Yeti DJ
    Pin it baby!

  3. #3
    Toyota Racing Dev. PWRDbyTRD's Avatar
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    if the derailleur still works couldn't he just change the cogs?
    Linkage...My 2004 Kona Hoss Dee-Lux My Mindless Banter
    Disclaimer: I'm 425lb...I put unnormal loads on my bike. This should help you in answering any of my questions.

  4. #4
    Giggity giggity! Dirtbike's Avatar
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    Oh derailluer pulleys! If your bike shop even charges you for new ones, it couldnt be more than 10 bucks max.
    Rides: 06 Demo8 II, Yeti DJ
    Pin it baby!

  5. #5
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    Price depends on the model. LX and below have simple jockey wheels that cost a couple of bucks each. XT has on with sealed bearing and one with sealed bushing, cost about 25 for a set up here in Canada. XTR has both sealed bearing pulleys, cost a mint.

  6. #6
    d_D
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    As long as they still spin reasonably smoothly you won't gain anything by replacing them.

  7. #7
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    Sorry bout any confusion, I just looked in Zinn's Mtb manual, he calls them "jockey wheels" or "guide pulleys". My bike is a Trek 8500 and the derailleur is XTR. Looks like I'll be replacing them...and paying a mint.

    Thanks for all your replies.

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