new rear sprocket, new chain?

Discussion in 'OT Driven' started by Bugalu, Aug 18, 2009.

  1. Bugalu

    Bugalu OT Supporter

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    if i replace the rear sprocket with an aluminum one, do i have to change the chain at the same time?
     
  2. AVengeance

    AVengeance Active Member

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    It usually is a good idea to swap for a new chain, especially if there's lots of hours / miles on the chain.

    But seriously, DON'T GET AN ALUMINUM SPROCKET. Alloy body and steel teeth, yea, but aluminum just isn't made for what a sprocket does, even the harder alloys, like 2024 and 7075. I've made race car parts for years, and I've worked with aluminum alloys extensively. Aluminum and metal/metal contact parts just don't generally go well together.

    If you do, make sure that your alignment is as close to perfection as Jesus himself would do it, and keep your chain very well oiled.
     
    Last edited: Aug 19, 2009
  3. Junkie

    Junkie re-tarded OT Supporter

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    stock rear sprocket on my bike is alu :dunno:
     
  4. Bugalu

    Bugalu OT Supporter

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    yea i've never had a problem with them.
     
  5. bubbaZR2

    bubbaZR2 i poop too much, then i get tired... OT Supporter

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    Should do it all at the same time
     
  6. AVengeance

    AVengeance Active Member

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    You guys with alloy sprockets: two questions.

    1) do you keep your chain very well oiled?

    2) are the sprocket teeth aluminum, or is it 2-piece (with a steel tooth ring and aluminum center)?

    Just curious.
     
  7. Junkie

    Junkie re-tarded OT Supporter

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    1) not really
    2) teeth are alu
     
  8. Bugalu

    Bugalu OT Supporter

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    1: yup. every 5th ride or so?
    2. all alum.
     
  9. BlkDrgnZ28

    BlkDrgnZ28 OT Supporter

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    so how many miles does the chain have on it? and if your going up teeth on the sprocket you will almost def need to well it would be a good idea at least
     
  10. mtnbikekid08

    mtnbikekid08 Aime-moi moins, mais aime-moi longtemps

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    Replace them all at once: chain and front and rear sprocket.
     

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