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Conference noted::bicycle

Title: Bicycling
Notice:Bicycling for Fun
Moderator:JAMIN::WASSER
Created:Mon Apr 14 1986
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:3214
Total number of notes:31946

259.0. "QUESTIONS ABOUT SMALL FRAMES" by CHEAPR::DELORIEA () Fri Apr 10 1987 14:11

       I have been shopping for a sport touring bike for my future wife.
    (5/23/87 and no I'm not marring her just because she likes to ride
    she is also a good cook.);-) She is not tall enough for a 19" frame
    so I have been looking at 17 1/2" frames. A most peculiar thing
    happens when frames get this small. The front wheel gets smaller
    and the rear wheel gets bigger (as in TERRY style bikes). Or the
    wheels are both 27" but the top tube is sloped a few degrees off
    being parallel to the road surface. I know this is in order to give
    the front wheel room one way or the other, and something to do with
    frame geometry.
    	My question is which way is better? Does it make a difference
    to a novice rider. I know it does in price. Any answers or
    enlightenment in this area would be appreciated. Thanks.
    
    						Tom
     
    
    
T.RTitleUserPersonal
Name
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259.1gospel, according to St. GeorginaEUCLID::PAULHUSChris @ MLO 8-3/T13 dtn 223-6871Fri Apr 10 1987 17:0815
    	I've been to Georgina Terry's workshop at bike rallys 2 or 3
    times, so I'll try to answer.  The primary problem is that women's
    proportions are typically different from men. The ratio of upper-
    body lenght to height (or leg length) is smaller for most women
    than for men.  ie.: Two people of equal height, male and female
    - the male will have shorter legs and a longer torso.  This means
    that on a given frame, you want a shorter reach to the handlebars
    for a female rider.  This means a shorter top tube length.  This
    brings the front wheel closer to the cranks, and the possibility
    of toe-clip overlap with a turned front wheel.  A smaller front
    wheel is the only solution (while maintaining typical head tube
    and seat tube angles).  Sloped top tubes, mixte frames, etc just
    don't address the whole problem: ya gotta get the front hub closer
    to the bottom bracket!  Something's gotta give, and it's the size
    of the front wheel.  - Chris
259.2RICKS::SPEARThe Culture PenguinMon Apr 13 1987 18:131
also see note 232.
259.3Hard to findMOSAIC::THOMPSONWed Apr 15 1987 20:5911
    I am only 5.1 and having problems to find a bike that I feel
    comfortable. Also, I don't know how to ride a bike but willing to
    take my chances and learn. I was advised to buy a 17 1/2 frame
    but 24' wheel bike (cheap one) until I feel comfortable then go
    to 17 1/2 frame 27' wheel with 10 speed. Univega has two models
    which fits the description.
    
    Does anyone have cheap 17 1/2' ladies bike for sale?
    
    Bahar Thompson