Any VRC frames out there with long TTs?- Mtbr.com
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  1. #1
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    Any VRC frames out there with long TTs?

    I have a pile of parts looking for a mid 90's 18-19 inch steel frame but I need a longish top tube. I'm kind of a knuckle dragger and my last two custom frames have 24 inch top tubes. Anything I should be specificaly searching for? I think a 23.5 inch TT with a 100mm stem would work. It doesn't have to be anything exotic, but should have nice tubing. Thanks
    Ripping trails and tipping ales

  2. #2
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    I know this answer! ooo ooo!

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  3. #3
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    I've heard of an Otis Guy with a reeeeeaaaaly long TT.
    Zip ties? Not on my bike!

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  4. #4
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    mid 90s? Gary Fisher.
    WTB: Bomber Z2 1 1/8 steerer, in good to excellent shape OR bomber rebuild kit.

  5. #5
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    Why not run a 23 inch top tube with a 125mm stem? The handling of early-mid 90's bikes are based on longer stems anyhow...

  6. #6
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    Quote Originally Posted by colker1 View Post
    mid 90s? Gary Fisher.
    For that matter, didn't Barracuda do the same thing first?

  7. #7
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  8. #8
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    Quote Originally Posted by jeff View Post
    I've heard of an Otis Guy with a reeeeeaaaaly long TT.
    Ya, but the HT angle and stem offset that 25" TT.
    -eric-

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  9. #9
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    18" WTB Phoenix.....pretty long setup. 2nd Nevil as well....the devil worked a really long top tube.
    Looking for/WTB : Grove Innovations Assault Fork, Grove Innovation Hammerhead Stem or Hothead Bar Stem

  10. #10
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    Iron Horse. The MT700 A-frames were lonnnnng.
    "Yeah, Humboldt County is way the %#@* up there, but worth it!"

  11. #11
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    On a bike with a sloping top tube, buy the next larger frame size and the TT is longer.

    I'm not sure that any 1990's frame was intended to be run with a 100mm stem. With TTs the length that you're interested in 120-150mm was the norm at the time for stem length.

    Also, pay attention to seat tube angle. A 23" top tube a frame with a 74 degree STA is a longer bike than a 23" top tube on a frame with a 72 degree STA.
    Each bicycle owned exponentially increases the probability that none is working correctly.

  12. #12
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    Quote Originally Posted by laffeaux View Post
    Also, pay attention to seat tube angle. A 23" top tube a frame with a 74 degree STA is a longer bike than a 23" top tube on a frame with a 72 degree STA.
    That seems counter to what I would of thought. Would not a 74 degree STA be more vertical bringing the seat closer not farther to the stem?

  13. #13
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    Quote Originally Posted by Fred Smedley View Post
    That seems counter to what I would of thought. Would not a 74 degree STA be more vertical bringing the seat closer not farther to the stem?
    The saddle should be in the same position relative to the bottom bracket regardless of seat tube angle. So with a steeper STA the saddle needs to be moved backwards relative to the seat tube by either having the saddle slid backwards on it's rails or by using a seat post with more offset. The steeper your STA, the further rearward the saddle must be moved to maintain your position on the bike.

    Slacker seat tube angles put more of the top tube length under the saddle instead of in front of the saddle.
    Each bicycle owned exponentially increases the probability that none is working correctly.

  14. #14
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    Quote Originally Posted by laffeaux View Post
    The saddle should be in the same position relative to the bottom bracket regardless of seat tube angle. So with a steeper STA the saddle needs to be moved backwards relative to the seat tube by either having the saddle slid backwards on it's rails or by using a seat post with more offset. The steeper your STA, the further rearward the saddle must be moved to maintain your position on the bike.

    Slacker seat tube angles put more of the top tube length under the saddle instead of in front of the saddle.
    I had a Ventana full sus built last year with a 74* STA and a 24"TT. with a 70mm stem. The other frame has a 72* STA and 24" TT with a 50mm stem. Both are perfect.

    Thanks for all the input. I know there are long TT production frames out there, like the first double diamond Alpinestars CR frames. My 1994 had a 23.4 TT and OX 3 tubing.

    I'm trying to stay away from anything desirable and sought after due to costs, and because it will be a winter beater. I'll probably end up running a longer stem and keep an eye out for a sloping TT Rocky, Voodoo or something similar.
    Ripping trails and tipping ales

  15. #15
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    A 1991 20" Kona Explosif had a 24" effective top tube, according to the catalogue. I know 20" isn't 18 or 19", but the sloping top tube might still give you enough stand over. Just my 0.02 $

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