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  1. #1
    Junior Member Little5er's Avatar
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    Interchangeable Cassettes

    So I will be riding in my first crit next weekend and I have a question regarding wheels for the wheel pit. I'm currently riding on 10 speed SRAM and I have an older 7 speed shimano wheel set from my old bike. Would there be any chance that the 7 speed cassette will work with the 10 speed derailleur?

    I'm guessing the answer I will get is no, so if that is the case does anyone know the best place to find a cheap used cassette that I can put on my spare wheel set?

    Thanks

  2. #2
    powered by Racer Ex gsteinb's Avatar
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    Doesn't sound possible, but if it were at minimum you'd need a longer free body and a longer axel.

    BikeRadar.com ? View topic - Cassette compatibility

  3. #3
    Senior Member mkadam68's Avatar
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    No. Your shifters are also part of the problem. Changing them on a free-lap would be... time-consuming.

    To find cheapest cassettes, I use Google Shopping. You could also try CraigsList for your area. The cheapest cassettes I can usually find are in the $50-60 range. Cheapest SRAM cassette I found (I prefer SRAM cassette's with my Ultegra setup) was one I found at Performance Bikes. It was on a sale. I haven't found it again.

    Best solution, though: check at your LBS. Racers should support LBS's so when you need something last-second, they will be more inclined to help you.

    Visit The C-Blog : the blog about cycling.

  4. #4
    Senior Member globecanvas's Avatar
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    It's not just a matter of buying a new cassette, like gsteinb said, you won't be able to put a 10-speed cassette on the 7-speed wheel.

    In other words, you can't use the rear wheel as a pit wheel.
    Last edited by globecanvas; 05-16-14 at 10:10 AM.
    Ninny

  5. #5
    Senior Member spectastic's Avatar
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    I got an ultegra 10 speed from ebay for like $55. I bet you can get tiagra or 105 for around $30.
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  6. #6
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    Quote Originally Posted by Little5er View Post
    So I will be riding in my first crit next weekend and I have a question regarding wheels for the wheel pit. I'm currently riding on 10 speed SRAM and I have an older 7 speed shimano wheel set from my old bike. Would there be any chance that the 7 speed cassette will work with the 10 speed derailleur?

    I'm guessing the answer I will get is no, so if that is the case does anyone know the best place to find a cheap used cassette that I can put on my spare wheel set?

    Thanks
    front wheel should work, you can just buy a spare rear wheel with a cheapo cassette to use as a backup. aside from just pit wheels, it's good to have a backup to use when needed.

  7. #7
    Senior Member shovelhd's Avatar
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    Gsteinb giving mechanical advice is hilarious. I'm surprised he even knows what a cassette is. He is right about this one, though. Even a blind squirrel gets a nut every once in a while.

    Put the front in the pits and pray. Get a spare like MDcatV says. I bought my trainer wheel brand new on Amazon for $75 shipped.

  8. #8
    Senior Member Tyrell's Avatar
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    7-speed wheel won't fit on your 10-speed bike without lots of work. The spacing between the dropouts for 7-speed is less than 10-speed. If I were in your position, I would either borrow a rear from someone for my spare or go without.

  9. #9
    Making a kilometer blurry waterrockets's Avatar
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    Another option is to replace the hub, nipples, spokes, cassette, and the rim. You should be fine with the same rim tape though.

  10. #10
    Junior Member Little5er's Avatar
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    Thanks for all of the tips everyone! Looks like for now I'm going to go with the front wheel and pray...

  11. #11
    . botto's Avatar
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    Quote Originally Posted by MDcatV View Post
    front wheel should work, you can just buy a spare rear wheel with a cheapo cassette to use as a backup. aside from just pit wheels, it's good to have a backup to use when needed.
    will work.

    Quote Originally Posted by shovelhd View Post
    Gsteinb giving mechanical advice is hilarious. I'm surprised he even knows what a cassette is. He is right about this one, though. Even a blind squirrel gets a nut every once in a while.

    Put the front in the pits and pray. Get a spare like MDcatV says. I bought my trainer wheel brand new on Amazon for $75 shipped.

  12. #12
    Senior Member Homebrew01's Avatar
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    You can use the 7 speed wheel. After you install it, shift around until you find the least noisy, least skipping gear. Then leave it in that gear.
    Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike

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