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  1. #1
    Goes to 11. striknein's Avatar
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    Sanity check - cassette interchangeability

    I'm modernizing a vintage mountain bike, and will be building up a new wheel with a Tiagra FH-4500 hub. Will any Hyperglide 8/9/10 speed cassette fit? I'm considering a SRAM PG-850.

    Also, will I need to monkey with spacers, or is it as simple as dropping the cassette onto the hub and buttoning it up?
    Quote Originally Posted by Nagrom_ View Post
    I actually just run calipers. Levers are for scrubs.

  2. #2
    Goes to 11. striknein's Avatar
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    As usual, Sheldon had the answer. Nevermind folks!
    Quote Originally Posted by Nagrom_ View Post
    I actually just run calipers. Levers are for scrubs.

  3. #3
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    I'd go with a 9 speed system. I believe tiagra 4500 is a 9 speed system.

  4. #4
    Goes to 11. striknein's Avatar
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    I'd prefer to go with 8 speed at this point. The cassettes are a lot more affordable and since I'll be using friction shifters, I'm concerned the spacing between cogs on a 9-speed cassette might make shifting a little squirrely.
    Quote Originally Posted by Nagrom_ View Post
    I actually just run calipers. Levers are for scrubs.

  5. #5
    coprolite fietsbob's Avatar
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    yea good plan 8 speeds are adequate.. but the cog size range is where you make the gears
    actually different.

    13-28 vs 13-34,, the 'mega range' is like a 13-24, 7 speed + a 34t cog for hills.
    Last edited by fietsbob; 01-11-13 at 12:24 PM.

  6. #6
    Senior Member Bill Kapaun's Avatar
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    9 speed cassette is just a "couple" $ more than 8 speed . Shop online-
    MUCH wider variety of combinations to select from than 8.
    You will need a 9 speed chain. $15-20

    When I went from 8 to 9 with friction shifters my shifting was much more precise. It was just a matter of ergonomics between the shifter and my thumb. (8 was better than 7) YMMV

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