SLoping top tube or straight

Discussion in 'Cycling Equipment' started by jobrazy, Dec 29, 2004.

  1. jobrazy

    jobrazy New Member

    Joined:
    Nov 22, 2004
    Messages:
    8
    Likes Received:
    0
    Hi all,

    I am looking at a new raod bike, and I am seeing both sloping top tubes and straight. I would like to hear 'from the road' experiences about both. Since I have only ridden stright top tubes, and just demo'ed the sloping bike with the shop setup - not my setup - it's hard to tell.

    Help me out! Your opinions are greatly appreicated.

    JB
     
    Tags:


  2. wow

    wow New Member

    Joined:
    Jun 16, 2004
    Messages:
    24
    Likes Received:
    0
    in my opinion, it's really just personal preference. From what i heard when i was looking around for a new bike, most people say that shorter people tend to like the compact/sloping top tubes.

    Specialized has compact frames and i tried out a couple of their bikes and really liked them, but i didn't like the sloping top tube (even though i'm a short 5'3'' girl). The guy at the shop put me in a size 50, but it felt small, esp. with the sloping top tube, it felt like there was "bike" missing...if that makes any sense. I did end up getting a specialized, but i went up in a size (52) so that the top tube was more straight. It ended up being a perfect choice because the top tube was the perfect length for me even though now with my road shoes and padded cycling shorts, i don't really have much clearance - this might sound weird, but the padding on my cyclings shorts pretty much touch the top tube when i stand over it.

    just go test ride a bunch of bikes and go with what feels best! :)
     
  3. ed073

    ed073 New Member

    Joined:
    May 19, 2004
    Messages:
    1,528
    Likes Received:
    0
    It's a marketing tool. Like everything else, racing bikes go through fashions.

    Neither frame style is inherently better than the other.
     
  4. MattAussie66

    MattAussie66 New Member

    Joined:
    Oct 12, 2004
    Messages:
    31
    Likes Received:
    0
    The only difference I have found between sloping toptubes and
    straight is that the sloping frames also tend to use a steeper
    seat tube angle (they don't have to, it's just fashion)

    This is probably not a problem if you are of average proportions
    of leg length to body length to arm length. For a guy I think
    the average of leg length to height is close 46%. So if you have
    legs to height ratio under 44% or over over 48% consider yourself
    odd (like me :eek:) and get a bikefit as you may have to be more
    picky in finding a frame that fits perfectly.

    regards
    Matthew
     
  5. toa

    toa New Member

    Joined:
    Dec 10, 2004
    Messages:
    100
    Likes Received:
    0
    For you not already tired of Lance Armstrong quotes :D, here is one on the subject of sloping versus straight:

    When asked by TREK engineeres if he would consider riding a sloping frame, he responded "I ain't riding no $#@€# girl's bike".
     
  6. boudreaux

    boudreaux New Member

    Joined:
    Oct 16, 2003
    Messages:
    5,133
    Likes Received:
    0
    More BS..........
     
  7. gerardbjr

    gerardbjr New Member

    Joined:
    Dec 14, 2004
    Messages:
    41
    Likes Received:
    0
    Contrary to what some people might tell you, there are no differences between bikes with sloping and straight top tubes. The slope of the top tube has no effect on the overall geometry of the frame. It also has little or no effect on ride quality, comfort, and aerodynamics - these depend more on the overall geometry and materials used than on the slope of the top tube. You can make a comfort oriented frame or a more aggressive and "faster" frame using either a sloping top tube or straight top tube. The only real difference between the two is cosmetic. The bottom line is that you should not let the slope of the top tube affect your decision to buy a bike.
     
  8. Tonto

    Tonto New Member

    Joined:
    Nov 3, 2003
    Messages:
    394
    Likes Received:
    0
    Yep, surely common sense dictates that once you're on the bike all that matters is the distance from the top of the seat tube to the BB and the top of the seat tube to the handlebars. What the seat tube and the top tube do in between doesn't make any difference, in terms of comfort.
    You'd probably notice a small change in stem length or angle before you'd notice the difference between a straight and a sloping tube.
     
  9. ed073

    ed073 New Member

    Joined:
    May 19, 2004
    Messages:
    1,528
    Likes Received:
    0

    Lol....spot on!! :D
     
Loading...
Loading...