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  1. #1
    Senior Member mr,grumpy's Avatar
    Join Date
    Jul 2009
    Location
    Boston Burbs
    My Bikes
    Diamondback Sorrento, 1978(ish) Peugeot PRN10e
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    8 speed chain on a 9speed MTB ring?

    looking to replace my smashed up cranks and while I'm at it I thought that I'd bump up a ring size to get more top end since I have a 34t big back sprocket. So I'm looking at a 48t (largest) crank that says that it's compatible with NINE speeds but the bike is EIGHT speeds. I know this sounds like a dumb question but I have been amazed at the tiny things that make a HUGE difference (and the HUGE things that make NO difference) when tinkering with bikes. So, will this ring work?
    "I'm built like a marine mammal. I love the cold! "-Cosmoline
    "MTBing is cheap compared to any motorsport I've done. It's very expensive compared to jogging."-ColinL
    Rides:
    1999-ish Diamondback Sorrento (I'm not Dead Yet! I feal happy. I think I'll go for a walk!)
    1980ish Raleigh Marathon (Vintage Steel)
    2007 Gary Fisher Advance (giving the Sorrento a break)
    2006 Trek 820 (Captain Amazing)
    2010 Specialized Tricross (Back in Black)


    My little bike blog.

  2. #2
    Senior Member DieselDan's Avatar
    Join Date
    Mar 2003
    Location
    Beaufort, South Carolina, USA and surrounding islands.
    My Bikes
    Cannondale R500, Motobecane Messenger
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    You should be fine as long as you are still using an 8-speed cassette.
    Bikes use brakes to stop.

    If your bike has breaks, don't ride it.

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