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Thread: Sizing-urgent

  1. #1
    works for truffles pigmode's Avatar
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    Sizing-urgent

    How do you size a track frame compared to a road frame? I ride a 53 c-t-t/53.5 TT with a 14cm stem RB, and the track bike I am looking at is 51.5 c-t-t/52 TT. Would this be optimal, or can it work without looking like a franken-bike?

    The RB has a 74 degree ST, and the track has a 75.5.

  2. #2
    Old Road Racer Cleave's Avatar
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    Hi,

    The old-school train of thought was that your track bike should be about 1 cm shorter than your road bike (or more for large frames). I ride a 53cm C-T road bike and my track bike (which I bought in 1983) is 52cm C-T.

    The 51.5cm that you quote sounds OK but the TT sounds a bit short, especially since you use a 14cm stem (which sounds awfully long).

    BTW, where in Hawaii are you going to ride a track bike?

    Hope this helps.

    Thanks.

    Cleave

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    53 c-t-t/53.5 TT with a 14cm stem ?????????

    your upperbody it is long? or your arms are super long like a monkey???? 14 cms stem? darn... r u sure u are a 53cms frame and not a 54/56 frame??? u have to start with that 1st u know. Ive seen here in the US people riding frames extremely small for their size. Or too big,,, the 2 extremes

    Actually it is right about 1 cm shorter for a track bike compared with the road bike but since u use a 14 cms stem I would like to see a picture of your road bike 1st u know.. would u post a picture 1st? or tell me your inseam size with the cycling shoes on please? (Im not sure about that word, inseam), how tall r u??

    I'm asking this because new frames sizes are crazy.. i mean they change from factory to factory so a 52 in old school steel could be like a 49 in a new slope frame... so actually all depends on the brand of the frame and urself. R u using an old style steel frame or one of the last alum/carbon frames? because the sizes in those ones arent even similar to a regular steel frame u know. And actually what it makes me think that u r using maybe an small frame for your height is the stem size. A 14 cms stem for a person your size it is too long. Unless u have monkey arms u know. Even if u have monkey arms, 14 it is too much u know.

    Thanks...

    UM

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    asleep at the wheel fixedpip's Avatar
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    2nd the call that having a 14cm stem seems like your Road bike is too small for you. Going smaller on a track would make it worse as on the whole most bikes tend to be 'square', where the ST and TT are similar lengths. So you're top tube would shrink further.

    The rule about 'em being 1cm smaller is just a guide. Both TT and ST lengths are really important for comfortable fit and handling.

    One option is to try before you buy, if you can. Most Velodromes have beginner sessions and rental bikes. That way you can try a few different sizings out before putting down any cash. Rental rates are very cheap and the instructors can normally offer excellent advice as to sizing, gearing, equipment etc.

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    works for truffles pigmode's Avatar
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    Thanks for the replies. I'll answer all in one post.

    - My bike is a Colnago so its sized fairly conventionally. Mine is 2 sizes down from a "conventional fit", and it worked out well--front/rear weight distribution is 46/54.
    - My cycling inseam (bare feet) is 81cm and I am 5'-10" tall, in other words short legs and long torso. One of the reasons I needed to go to such a small frame is head tube size--with my short legs, most larger sizes would not allow me to set up my prefered handlebar drop.

    I guess it was wishful thinking on my part that this track frame (a very special frame) would fit. BTW, I was going to use it as a fixed for the road. Can someone recommend a TT length?



    Colnago Master X-Light Geometry

    Seat Tube (c-t) Top Tube (c-c)
    53.0 53.5
    55.0 54.3
    56.0 55.0

  6. #6
    Old Road Racer Cleave's Avatar
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    Quote Originally Posted by pigmode
    BTW, I was going to use it as a fixed for the road. Can someone recommend a TT length?
    Hi,

    Given your height and inseam, I would guess that your current frame is not sized properly. I used to do bike fittings at a large shop in Southern California using a Fit Kit to baseline a rider. However, I wouldn't want to guess a frame size or a top tube length without seeing you on a bike.

    Two recommendations:

    1. Go to a reliable bike shop that primarily deals with high-end road bikes and get a professional fitting. If you can't find a shop like that on Hawaii, maybe you need to treat yourself to a trip to the mainland.

    2. Use an old steel road frame with long dropouts for your fixed gear bike. (Don't buy the frame until after you get a fitting.) There are also some framemakers who are building road bikes for fixed gear use. Going this route will keep you from having to get the fork drilled (among other things.)

    Hope this helps and good luck.

    Thanks.

    Cleave

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    HI....

    I think that colnago master in the picture its yours... right? well your seat it is too high... that frame it is too small 4 u dude... I bet a 55 could fit better... a 53 it is too small 4 u. Just ad 2 cms to the Top tub thats all u'll do so far.. so isnt a problem. A compact frame could work too U know...

    As u said... the convetional fit it is like a 55 right? so why do not stick with it anyways...?? The stem u have t use is like a 12 cms long. thats all. The seat wont be too high as it is now (no wonder why u said something about a frankenbike), even the Top Tube wont be too high for u. My dad is like you... and he was using a 55x56 custom made frame. I use 56x56. so my dads was my spare bike when racing.

    Even i dont knwo how u dont feel unconfortable (your back and your kness) using such a short frame. THe hiight of the frame it is only a detail because the lenght is the part that u have to realy try to acmomodate the best u can and sincerely no matter how long the stem is, the frame it looks too short anyways, even more when u have long torso.

    What I would do if font believe us too much (makes sense to think it right?). get a track 54x54 then use a track stem on it. The position will be lower. We have to think too in styles of riding and all that stuff.

    I know a chick here in VA who does triathlon. She is quite small and the LBS it is still working w/the guys from litespeed i think it is.. well 3 custom made frames last year and she still complains because sho doesnt look like benard hinault or pedro delgado when riding her bike. The answer is STYLE and they still do not realize that no matter what she rides she will ride as a caveman anyways. the worse part. she is like 4.9 tall so no bike will fit her anyways (maybe a BMX), but the LBS is doing money.... So u have to think that maybe u r tying to do that, trying to fit like somebody being that the way u ride a bike is another one anyways.

    Honestly the frame u have r/now it is too small for u. See what the guys at your LBS says... U just mentioned "prefered handlebar drop".. what do u mean? U ride super low and aerodinamic??? the back absolutely flat? as i see in the picture with a 55 the only thing u have to do is not use fork spacers, a shorter stem and all set. Dont forget to move the seat forward, I bet its way back...

    I have a ridley compact. I bought a large size only because of the efective size of the frame. I'm more like a medium in ridleys but the modium it was going to be too short for me. Im like in the limit between a medium and a large. So i went with the large, and i was right. Like a glove the 1st time.

    hope this could help u... with regular geometries it is better stick with the size that is right for u or 1 cm less thats all (when u have short legs), because if u get a frame too short ull end with an extra long stem (u will have problems pedaling) and the seat so back that u'll be seated with the guys that are at your back. Behind u.

    Again.. hope this helps...

    UM.

    ps: r u japanese? Im a half japanese.

  8. #8
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    watch out this...

    It will be your only chance so far to get something like that...

    http://cgi.ebay.com/Orbea-Pista-Trac...QQcmdZViewItem

  9. #9
    works for truffles pigmode's Avatar
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    ultraman, Cleave,
    I'm not Japanese but have practiced Iaido for over 15 years, and before that, Judo for 8. I love Japan.

    My colnago is small, but not too small. That pic is right after it was built, and basically unridden. I now run a .25cm spacer under the stem and yes, when in the drops, have a flat back with a slight bend in the elbows. As I mentioned in the OP, weight distribution is 46/54. All of my contact points are right and would be the same with a frame one or two sizes bigger. Saddle tip to handlebar (center) is 57.5cm. Knees are 1cm back. I have a long torso so at this point, and until I get a custom frame, this setup works. As a competitive kayak paddler I have developed a strong core.

    Anyway, thanks all for the advice. I was looking at an in-the-box Nagasawa but it was just wishful thinking on my part. Bummer...

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