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  1. #1
    Senior Member br995's Avatar
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    650s on a 700 frame?

    Besides looking silly (and not being able to brake) is there any serious reason not to run 650 wheels on a frame designed for 700s? A lower bottom bracket is the only real problem I can think of.
    Last edited by br995; 08-12-07 at 08:39 PM.
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  2. #2
    Hello. crushkilldstroy's Avatar
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    You pretty much have it all covered. Also remember that it's more of a pain to find 650 tires.

  3. #3
    crotchety young dude el twe's Avatar
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    And rims. But you get all kinds of fender clearance!
    Quote Originally Posted by CardiacKid View Post
    I explained that he could never pay me enough cash for the amount of work I had put into that bike and the only way to compensate me for it was to ride the hell out of it.
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  4. #4
    Senior Member doomkin's Avatar
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    650 = barspins.

  5. #5
    Hello. crushkilldstroy's Avatar
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    Quote Originally Posted by doomkin View Post
    650 = barspins.
    Barspins = ****ing stupid.

  6. #6
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    Hating = ****ing stupid. Grow up, let other people have fun.

  7. #7
    Hello. crushkilldstroy's Avatar
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    Quote Originally Posted by DannyRocks View Post
    Hating = ****ing stupid. Grow up, let other people have fun.
    Oh blah. Buy a BMX bike.

  8. #8
    Cornucopia of Awesomeness baxtefer's Avatar
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    You'll be dropping your BB by around 2.5cm,
    Bad idea unless you're running 140mm cranks.
    {o,o**
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    O RLY?

  9. #9
    na975
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    i have a 650 wheel/fork and its not all that noticeable.

  10. #10
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    What about a 650 front wheel/fork and a 700 rear wheel?

  11. #11
    All around nice guy BRANDUNE's Avatar
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    pursuit?

  12. #12
    Run What 'Ya Brung bonechilling's Avatar
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    Quote Originally Posted by dm-tm View Post
    What about a 650 front wheel/fork and a 700 rear wheel?
    You could put one on there, but why bother? Do you want to carry around two different types of tubes or otherwise inconvenience yourself?

  13. #13
    Senior Member filtersweep's Avatar
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    Why stop there? Why not run 20s?

    Best reason- you probably will start a ridiculous copycat fad, in six months everyone will be doing it.

  14. #14
    sharkfin. babychris's Avatar
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    Quote Originally Posted by crushkilldstroy View Post
    Oh blah. Buy a BMX bike.
    go ride a bike and stop worrying.

  15. #15
    crotchety young dude el twe's Avatar
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    Therefore 650 = hating.
    Quote Originally Posted by CardiacKid View Post
    I explained that he could never pay me enough cash for the amount of work I had put into that bike and the only way to compensate me for it was to ride the hell out of it.
    IRO Angus Casati Gold Line

  16. #16
    out of shape
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    I'm sure this is redundant, but you'll lower your BB by twice as much if you use a 650c fork rather than just slide the 650c in the 700c fork.

  17. #17
    yo yo yo yo yo
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    changing one wheel (and or fork) wouldnt do it nearly as much as both wheels

  18. #18
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    Quote Originally Posted by br995 View Post
    Besides looking silly (and not being able to brake) is there any serious reason not to run 650 wheels on a frame designed for 700s? A lower bottom bracket is the only real problem I can think of.
    Not being helpful at all: I went the opposite way with 1.5 of my bikes. Got higher BB in one case and steeper front in .5 case.

  19. #19
    yo yo yo yo yo
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    ht and st angles get a little bigger... not sure by how much though

  20. #20
    re:member
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    Quote Originally Posted by trons View Post
    ht and st angles get a little bigger... not sure by how much though
    Not at all. By changing both wheels, you are just moving the frame 2.5cm lower, still parallel to the ground. The front trail gets affected, though.

  21. #21
    Walks with a limp dijos's Avatar
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    Umm, are we talking about 650B or 650c?
    I am looking for a 52cm-ish lugged mixte or ladies frame. Pm if you got one.
    Quote Originally Posted by thebristolkid
    Last I checked, most college campuses were firmly attached to solid earth, which, in my experience, is typically adequate for riding a bicycle upon.

  22. #22
    Run What 'Ya Brung bonechilling's Avatar
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    Quote Originally Posted by dijos View Post
    Umm, are we talking about 650B or 650c?
    If they were talking about 650B, this thread would be in the Touring forum.

  23. #23
    Walks with a limp dijos's Avatar
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    Fair enough.
    I am looking for a 52cm-ish lugged mixte or ladies frame. Pm if you got one.
    Quote Originally Posted by thebristolkid
    Last I checked, most college campuses were firmly attached to solid earth, which, in my experience, is typically adequate for riding a bicycle upon.

  24. #24
    prolly is not probably johnprolly's Avatar
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    Quote Originally Posted by BRANDUNE View Post
    pursuit?
    Only the frame makes it pursuit. Not the wheels you decide to roll with.

    I've ridden a 650 spinergy on my KHS aero track. Yes , mostly for barspins and for fun. I wouldn't recommend it for a frame setup for 700s because pedal strike's a *****.

    If you plan on doing this for a permanent fix, at least change out your fork.

  25. #25
    Old enough to know better Spudmeister's Avatar
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    Been done before...

    I set up an IRO Mark V with 650B wheels. Worked out pretty well. I used some Tektro R556 brakes (an old set of center-pulls will also work).

    You don't say in your post whether your using 650C or 650B - I don't know how much difference between the two.

    Check out these sites...
    http://www.freewebs.com/650b/index.htm
    http://www.sheldonbrown.com/650b.html

    & a photo...


    Good luck!

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