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  1. #1
    VeloSIRraptor
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    Sizing question after looking over Tiemeyer's website

    So, I've been racing for a few years on a 53cmTT Raleigh Rush Hour Pro with Reynolds Track Pro fork. Current position has a setback seatpost, 110mm 10d stem flipped up with 117mm total HT stack under the stem.
    It meets my needs perfectly adequately, but I had some time on my hands and went through the general calculator on Tiemeyer's website and it recommended a minimum 55cmTT for me. (see attached screenshot)
    Tiemeyer Screenshot.png
    I've got my fit really quite dialed in over the last years, and I race RR/Crits/etc on a 54cmTT bike with no spacers and a -12d stem... I'm very happy with my track position, but it is achievable on either a 55 or a 53.
    Is handling on steep tracks the reason Tiemeyer would recommend a larger bike (shorter stem, longer top tube for different steering input response time)?
    At 145ish and 5'10, I'm very much an enduro with workable pursuit legs... so sprint geo isn't something I'm worried about.

    Admittedly, I race on a 400m track with 27ish degree banking, so anything works there - but this year I'll be traveling to Alpenrose, Burnaby, and Col. Springs - I'm thinking about it now & trying to sort it out before the season hits.

    A teammate has a 55cm Rush Hour Pro that I can trade for, so the option is out there and I'm not sure.

    Suggestions?
    Quote Originally Posted by shovelhd View Post
    If it comes down to a field sprint, you probably won't win, so don't let it.

  2. #2
    Senior Member
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    If you've seen my recent post, I just got a Medium Tiemeyer Signature track frame. Dave is the man for setting you up on a frame. He had me take some measurements from my current setup and did an overlay with the specs from his frame. For reference, I'm 5'9" and typically ride a 53 or 54 on the road with a 55cm tt. My Felt is a 54. Let's just say, Dave can build a bike. If you're serious about picking one up, I'm not sure what stock he has left, but he's retiring at the end of this month and you might want to get on the phone with him tomorrow. He's been happy to help out with all my questions and needs. Good luck!
    Tiemeyer For Sale
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  3. #3
    Brown Bear, Sqrl Hunter Jaytron's Avatar
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    You said you've been racing, have you had a pro fit done? Having a fitment done will answer most of these questions for you.
    PedalRoom

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  4. #4
    Senior Member Kayce's Avatar
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    A computer fit can only be so accurate, an inperson fit can get more accurate. But I am a big advocate of being intune with your body and your bike.
    If You Meet The Buddha On The Road, Kill Him

  5. #5
    VeloSIRraptor
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    yes, I get at least one fitting and one check up every year from the same fitter, after 4-5 years of being fussy about my fit, I'm quite happy with my position.
    Sadly, there aren't any more Tiemeyers in my size, nor could I afford one even if there were.

    The point of my post wasn't about fit, it was about handling of identical positions on different sizes of bikes.
    Eg - 55cmTT with 90mm 6d stem vs 53cmTT with 110mm 10d stem.

    I've been racing this bike for a couple years now and it works quite well, I'm curious about how longer stems and more weight over the front wheel would affect handling in steep tracks.
    Quote Originally Posted by shovelhd View Post
    If it comes down to a field sprint, you probably won't win, so don't let it.

  6. #6
    Elite Rider Hermes's Avatar
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    I am going to go out on a limb and say it is not going to make much difference. I train and race at both Hellyer 23 degree and Velo Sports Center 45 degree.

    If I use a Scatto 3T sprint bar, I need a longer stem than if I use my 3T Sphinx endurance bar on the same bike. So if one wants to believe that stem length is a key variable for bike performance on a 250, then the handlebar design should be considered in the specification of the frame. I do not notice any issues at VSC using either the Scatto bar or regular endurance bars. However, I am pursuiter / 500 guy and use the sprint bar for team sprint. Most of the time in a race or training at VSC, I am perpendicular to the track. So unlike a crit, my front wheel is not going to wash out. Now if I go too slow and let off power, I will slip down the track and I suppose that front to rear weight distribution could make a difference.

    Here is what I am going to do. I recently purchased a new Dolan DF3. I am going to VSC and get the fit and aero testing service. http://www.roadbikeaction.com/Relate...e-Fitting.html

    I will have a bunch of stems and cranks of different lengths as well as other equipment. I will set up a sprint and pursuit cockpit and then go on the track and optimize aero position. Then I am done.
    Last edited by Hermes; 04-02-13 at 03:01 PM.
    "Insanity: doing the same thing over and over again and expecting different results." Einstein

  7. #7
    Elite Rider Hermes's Avatar
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    Hida, In an ideal world, one has a sprint bike, pursuit bike and mass start bike all optimized for performance within the UCI rules.
    "Insanity: doing the same thing over and over again and expecting different results." Einstein

  8. #8
    VeloSIRraptor
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    Quote Originally Posted by Hermes View Post
    I am going to VSC and get the fit and aero testing
    I was hoping you, RX, or some one from the Cal contingent would go do that & report :-)

    thanks on your thoughts, I am going to be taking two bikes to the big races this year, similarly to your suggestion.
    (mass start, and 1k/IP/TP)
    Quote Originally Posted by shovelhd View Post
    If it comes down to a field sprint, you probably won't win, so don't let it.

  9. #9
    Elite Rider Hermes's Avatar
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    My wife did the service a couple of weeks ago and it is excellent.
    "Insanity: doing the same thing over and over again and expecting different results." Einstein

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