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  1. #1
    Craig A. Lebowitz lebowitz's Avatar
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    Triplecross troubles

    Last weekend bought a Miyata Triplecross that started talking to me at the bike swap. I liked the cross config and it was telling me to bring it home and overhaul. Much to the chagrin of my girlfriend, I did. My main commuting and training ride is a 1981 Miayata 710. I added the triplecross because I thought it would be able to bomb around the city with it, going places I wouldn't dare with my roadbike. The bike has 700c wheels, cantilever brakes, an HG freewheel, with exage hubs.

    I am 210 lbs.

    First test ride I was doing some rough terrain in my alley and all of a sudden my tire starts rubbing on the chain stay periodically. I take off the rear wheel and , behold, the axle is bent and breaks when I'm undoing the hub locknut. My friendly LBS sells me a bare axle and I rebuild the wheel.

    Second ride, a commute to work. Bombing back to my house I brashly drop a 4" curb and, to my surprise, I have bent the new axle in exactly the same place.

    My new bike is telling me I need to lose weight.

    Seriously though, can I just buy a cassette 700c rear wheel and expect this problem to go away? Could I use a MTB wheelset on this frame? I can provide more exact measurements at home.

  2. #2
    Hammer Time C_LOGAN's Avatar
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    check the rear frame alignment using string and a ruler. A misaligned frame could be causing the breakages.

  3. #3
    Craig A. Lebowitz lebowitz's Avatar
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    Is this the string method mentioned here, checking that the drop outs are evenly spaced from the seat tube?

    http://sheldonbrown.com/frame-spacing.html

  4. #4
    Hammer Time C_LOGAN's Avatar
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    Quote Originally Posted by lebowitz
    Is this the string method mentioned here, checking that the drop outs are evenly spaced from the seat tube?

    http://sheldonbrown.com/frame-spacing.html
    Yes, that is the one.

  5. #5
    Senior Member TimJ's Avatar
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    So it's a freewheel setup? If so, cassette hubs are stronger cuz the bearings are closer to the dropouts. That frame should be spaced 130mm so road wheels will fit no problem.

    Or you could give it to me. I love me some triplecrosses.

  6. #6
    Craig A. Lebowitz lebowitz's Avatar
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    Yeah the bike had a real good feel for the half hour that I was able to ride it. The only way you will get my triplecross is to pry it from my cold dead hands

    Yes it's a 6-speed freewheel
    I'm going to check the frame alignment tonight and if it's even, I'll have my lbs restring to a freehub

  7. #7
    Senior Member squirtdad's Avatar
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    You can certainly use a mountain bike hub based wheel. I put a deore hub on an old nishiki road bike (cold set the frame). good luck

  8. #8
    Craig A. Lebowitz lebowitz's Avatar
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    Nice thanks.. would most cantilever brakes accept the change from 700c to 26" with adjustment?

    Quote Originally Posted by squirtdad
    You can certainly use a mountain bike hub based wheel. I put a deore hub on an old nishiki road bike (cold set the frame). good luck

  9. #9
    Senior Member TimJ's Avatar
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    There's no reason to change to 26". You can have a mtb hub on 700c wheels.
    fun facts: Psychopaths have trouble understanding abstract concepts.
    "Incompetent individuals, compared with their more competent peers, will dramatically overestimate their ability and performance relative to objective criteria."

  10. #10
    Death fork? Naaaah!! top506's Avatar
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    I built my Triplecross up from a frameset and ran a cheap Weinmann hybred 700c wheel in the back for a while with a freewheel with no problems, but I am 165 lbs.
    As soon as I got a good deal I swapped out to a wheelset built around Shimano HG50 hubs and a 13-30 cassette. I also built it up with v-brakes.
    Don't listen to TimJ; he's been lusting after a Triplecross for as long as we've both been posting here
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    You know it's going to be a good day when the stem and seatpost come right out.

  11. #11
    aspiring Old Wart Sluggo's Avatar
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    Quote Originally Posted by lebowitz
    Nice thanks.. would most cantilever brakes accept the change from 700c to 26" with adjustment?
    No.

  12. #12
    Craig A. Lebowitz lebowitz's Avatar
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    Had the dropout alignment tweaked by my LBS and they sold me a solid axle and set of track nuts. I'll let y'all know if I bend that!

  13. #13
    put our Heads Together cerewa's Avatar
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    Your rim brakes are not 26"-wheel compatible.

    But 700c and 29" wheels are the same diameter-- you can even use the same tires.
    Some awesome folks who are working to give Haitians the ability to manage their safety and their lives:
    Haiti Partners

  14. #14
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    Quote Originally Posted by lebowitz
    Bombing back to my house I brashly drop a 4" curb and, to my surprise, I have bent the new axle in exactly the same place.

    My new bike is telling me I need to lose weight.
    No, it's telling you to stop abusing the wheels. Road wheels and hubs aren't meant to be beaten up like that.

    If you want to do that sort of thing get an MTB.

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