Advertise on Bikeforums.net



User Tag List

Results 1 to 12 of 12
  1. #1
    Newbie
    Join Date
    Jun 2014
    Posts
    1
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    What size bike for a 5'10 woman with a 36'' inseam?

    I'm helping my girlfriend shop for a new roadbike or hybrid. She has a super long inseam measurement. We only have cash to try to pick up a second hand bike off craigslist, so she probably can't be too picky on the exact size, but recommendations for general guidelines would be super helpful.
    Thanks in advance!
    Last edited by omphalos; 06-02-14 at 04:18 PM.

  2. #2
    just another gosling Carbonfiberboy's Avatar
    Join Date
    Feb 2007
    Location
    Everett, WA
    My Bikes
    CoMo Speedster 2003, Trek 5200, CAAD 9, Fred 2004
    Posts
    8,188
    Mentioned
    4 Post(s)
    Tagged
    1 Thread(s)

  3. #3
    Senior Member
    Join Date
    May 2010
    Location
    Bristol, R. I.
    My Bikes
    Specialized Secteur, old Peugeot
    Posts
    1,562
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    If your girlfriend intends to ride a lot, say 75 to over 100 miles per week, I would be very picky about fit above all other considerations. Everything else can be swapped out as necessary but fit (or lack of) is permanent.

  4. #4
    Bicycle Repair Man !!! Sixty Fiver's Avatar
    Join Date
    Sep 2007
    Location
    YEG
    My Bikes
    See my sig...
    Posts
    26,211
    Mentioned
    19 Post(s)
    Tagged
    2 Thread(s)
    She is my height with an extra 4 inches of leg... I ride 52 - 55cm and have male friends my size who can't match my reach even though the saddle position is almost the same.

    A hybrid may provide a more compact top tube to adjust for what I think will be a shorter reach as if she has exceptionally long legs she will have a shorter torso... finding a road bike might be a little trickier and she may have to ride the smallest size possible in her range to get the shortest top tube and may need to shorten the stem a little as well.

    Her legs are disproportionately long for her height and her riding inseam (with shoes) will add another inch or so.

  5. #5
    aka Tom Reingold noglider's Avatar
    Join Date
    Jan 2009
    Location
    West Village, New York City
    My Bikes
    too many
    Posts
    19,856
    Mentioned
    73 Post(s)
    Tagged
    1 Thread(s)
    She may be happier with a bike with a 23" (58cm) seat tube than a 25" (63cm) not because of the height but because of the forward reach. It may be difficult to find a bike with a short enough reach. With a 23" bike, she'll need the seat raised up high, which may require replacing the seat post.
    You don't read my signature anyway, do you?

    Tom Reingold, noglider@pobox.com
    Residences: West Village, New York City and High Falls, NY
    Blogs: The Experienced Cyclist; noglider's ride blog

  6. #6
    Senior Member Road Fan's Avatar
    Join Date
    Apr 2005
    Location
    Ann Arbor, MI
    My Bikes
    Terraferma 650b, Mondonico SL and ELOS, Masi Gran Criterium, Trek 610, Breezer Liberty, Georgena Terry Classic
    Posts
    11,148
    Mentioned
    6 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Sixty Fiver View Post
    She is my height with an extra 4 inches of leg... I ride 52 - 55cm and have male friends my size who can't match my reach even though the saddle position is almost the same.

    A hybrid may provide a more compact top tube to adjust for what I think will be a shorter reach as if she has exceptionally long legs she will have a shorter torso... finding a road bike might be a little trickier and she may have to ride the smallest size possible in her range to get the shortest top tube and may need to shorten the stem a little as well.

    Her legs are disproportionately long for her height and her riding inseam (with shoes) will add another inch or so.
    I agree about her proportions, but I can't say it's wrong. It might be a good idea to find the procedure for measuring PBH on the Rivendell site (rivbike.com) or other places you might Google and check the number. If what you told us has anything to do with fitting clothing, it's not at all likely to be correct.

    The normal procedure is done barefoot, then the saddle height setting adds height to compensate for shoes that have more sole build-up than "standard cycling shoes," whatever that really means.

    If you're going to try the Competitive Cyclist fitting routine, you need a correctly-measured PBH for her.
    Last edited by Road Fan; 06-09-14 at 05:51 AM.

  7. #7
    Senior Member
    Join Date
    Jul 2005
    Posts
    1,588
    Mentioned
    12 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Road Fan View Post
    I agree about her proportions, but I can't say it's wrong.
    Ok, then I will. The o.p. wouldn't be the first guy who is sure his girl's legs go all the way up to Heaven. If I am wrong for doubting him, I will likely go to Hell, but I will risk it. Measure again, and then measure again. And if you are still coming up with 36" then I don't think it too much to ask, for all the other dimensions that an online fit calculator would want, to make any kind of intelligent response. FWIW.

    H

  8. #8
    coprolite fietsbob's Avatar
    Join Date
    Jun 2010
    Location
    NW,Oregon Coast
    My Bikes
    7
    Posts
    1,596
    Mentioned
    35 Post(s)
    Tagged
    0 Thread(s)
    Ms G Terry XL ? the typical female is benefitting from less reach

    and that is where the shorter top tube becomes an advantage..

    She goes to Waterford to get the frames of her Steel bikes made.. so a good investment , long term.

  9. #9
    Senior Member
    Join Date
    Jul 2005
    Posts
    1,588
    Mentioned
    12 Post(s)
    Tagged
    0 Thread(s)
    I'm not sure why we are assuming that the female in question has 'normal' proportions aside from inseam, and will therefore require a shorter top tube and/or bar reach than a male of equal height. Given what we have already been told, I would assume the opposite. I suspect, but this is may never be confirmed, that the inseam measurement might be overstated, but if it is at all close to being correct, then I believe a woman specific design will not help her achieve a comfortable riding position. Here in Portland, taller women ride men's frames and don't have any issue with it. In fact, shorter women ride men's frames as well. It's not about dimensions, its about style. Mixte, step-through style "women's" frames are not built the way they are because women are shorter in general and/or have shorter torsos and arms. "Women's" frames are built the way they are built to accommodate dresses and skirts and a less threatening mounting in general. FWIW.

    H

  10. #10
    Senior Member Road Fan's Avatar
    Join Date
    Apr 2005
    Location
    Ann Arbor, MI
    My Bikes
    Terraferma 650b, Mondonico SL and ELOS, Masi Gran Criterium, Trek 610, Breezer Liberty, Georgena Terry Classic
    Posts
    11,148
    Mentioned
    6 Post(s)
    Tagged
    0 Thread(s)
    Generally, I agree with Leisesturm - find out her true measurements and based on that find out some reasonable target dimensions for a frame for her. Use a frame sizing site such as Competitive Cyclist if possible.

  11. #11
    Senior Member
    Join Date
    Oct 2007
    Location
    SW Florida The Everglades
    My Bikes
    Rivendell Bleriot and a Panasonic 1986 7500 MTB
    Posts
    182
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Check this out: Learn About Bikes with Rivendell Bicycle Works There advice is solid and they are nice folks.

  12. #12
    Senior Member woodcraft's Avatar
    Join Date
    Apr 2012
    Location
    Nor Cal
    Posts
    625
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    I'm working on a friend's road bike.

    It's a 52cm with a super long seat post, but if you get it up that high, the bars are about 10" below the saddle.

    A medium size hybrid with higher bars might be good to look at.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •