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  1. #1
    Junior Member
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    Used Trek 700 Multi-Track

    I am not new to biking, but I am new to advanced bicycle mechanics. I have done minor repairs. I have a very well used 1992 Trek 700 hybrid. Besides repacing the tires, seat, and cables, that I can do: on this bike I will need to replace the bottom bracket(don't even know what bottom bracket to order), sounds like a pepper mill grinding. Moreover, I think that have to replace the the rear hub and some broken spokes. Besides the minor repairs, the major repairs at a bike shop would cost more than the bike is worth. Would appreciate any suggestions.

  2. #2
    Senior Member DieselDan's Avatar
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    Make sure the seatpost isn't siezed. If so, then forget it, the cost of removal isn't worth it. Better to replace the entire rear wheel then get a new rim laced to the hub. Of several spokes are broken, and the bearings need replacing, just get a new wheel. The bottom bracket can have the bearings replaced for a reasonable price.

    The question isn't are the repairs more then bike, but is the repair cost more then a new bike.
    Bikes use brakes to stop.

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

  3. #3
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    Thanks for the reply. How do you know if the seat post has seized? Also, I know getting the bike repaired would cost more than the bike is worth. Moreover, doing it myself may end up costing me more than buying a similiar used hybrid. However, I would like to learn how to do these more advanced repairs.
    Joe

  4. #4
    Senior Member Bill Kapaun's Avatar
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    86 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.
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    Your major dilemma is tool cost, unless you can borrow bike specific tools.
    I've replaced a BB myself without the correct BB specific tools, but I had a good assortment of other tools to choose from. One was a large curved jaw vise grip pliers!. You still need a crank puller though.
    That's probably a cup type BB? IF just the Ball Bearings were pad, it would be cheap to fix, parts wise. Chances are though, that one or more cups and/or the spindle is bad. Those parts are getting difficult to find and could EASILY cost more than a low end cartridge stle BB. Those require a special tool to install.
    Crank puller- probably $15? (I paid $18 at the lbs)
    BB tool- probably another $15? (lbs wanted $22?)

    Then you have the rear wheel. Doesn't your bike have a 6 speed Free Wheel?

  5. #5
    Junior Member
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    Thanks for the reply. The bike has a seven speed free wheel with a Shimano Altus derailler. I want to purchase a basic bike specific tool kit: e.g. Nashbar, Pricepoint, or Performance Bike tool kit.

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