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88:", "women's" or "girls' bicycles", as they allow skirts or dresses to hang fairly normally. Bicycles with a high top tube (cross-bar), known as a, were known as "men's", "gents", or "boys' bicycles". Even in the 1800s, women often rode "men's" bicycles and vice-versa; from the 1890s onwards, women commonly wore bloomers to cycle. Since the late 20th century, descriptions that describe the frame style, rather than the presumed gender of the rider, are becoming increasingly common.
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A variant on the mixte uses a single, full sized top tube running from the upper head tube to the seat tube, but retains the middle set of stays. The FNCRM (Fédération
Nationale du Commerce et de la Réparation du Cycle et du Motocycle) calls this style a
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Since mounting or dismounting a step-through does not require swinging one leg to hip-height, they are widely used as delivery bicycles, and for other purposes where the rider has to mount and dismount frequently.
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More difficult to carry around off the ground due to the sloping tube near the bicycle's center of gravity, e.g. carrying it up stairs, or lifting to hang it for maintenance.
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1896 ad for a women's cycling suit with drawstrings at the center front and back of the skirt, to raise it for riding either a dropped-tube or level-tube bike.
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Heavier. Compared to a traditional diamond frame consisting of two near-triangles, open or step-through frame designs must be designed with thicker
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Inattention to structural design can lead to excessive flexing, resulting in lower pedaling efficiency and reduced frame life.
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potentially safer than a high top tube; a rider who loses balance can step through the bicycle without becoming entangled
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Finite-Element
Structural Analysis: A New Tool for Bicycle Frame Design: The Strain Energy Design Method
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frame construction. These structural elements may add weight or cost over a traditional diamond design.
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on the way. The normal seat stays and chain stays are retained. This provides the lower
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This article is about a type of bicycle frame. For step-through motorcycles, see
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Traditionally, bicycles with a step-through frame were known as "ladies
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of a step-through frame bicycle with a strong diamond-frame geometry.
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Fewer places to mount accessories, e.g. an air pump or water-bottle.
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less risk of stretching or ripping clothes when mounting the saddle
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Other named French styles of step-through frames, in addition to
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Image from an 1889 advertisement for a ladies' safety bicycle
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tubing, the use of additional gusseting members, and/or
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suitable for elderly and others with restricted agility
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One particular type of step-through frame is called a
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all the way back to the rear axle, connecting at the
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very quick to mount and dismount, so is suitable for
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Woman with a step-through frame bicycle in the 1890s
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124:compactness provides a popular starting point for
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570:, University of Washington (February 2004), p.1
327:Another type of step-through frame is called a
614:"Hirose's Photo Gallery 9 - 216 Sport車 （製作過程）"
364:Postal delivery by bicycle in Cologne, Germany
77:, with a low or absent top tube or cross-bar.
568:Mechanics of Materials Laboratory: Structures
73:) is a type of bicycle frame, often used for
100:the rider can wear a skirt (also requires a
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566:Wingerter, R., and Lebossiere, P., ME 354,
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462:Racing cyclist Marie Tual, 1896 or 1897
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586:(April 19, 2010). John Allen (ed.).
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45:with a step-through frame
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185:. In a mixte frame, the
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229:pronunciation of this
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425:Itera plastic bicycle
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27:Type of bicycle frame
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521:Van Der Plas, Rob,
302:double col de cygne
189:of the traditional
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523:Bicycle Technology
412:Damenrad from 1900
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323:with a cross frame
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59:step-through frame
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676:Media related to
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113:delivery bicycles
16:(Redirected from
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694:Cycle types
106:chain guard
102:skirt guard
642:2011-05-04
505:2010-02-07
499:"Top Tube"
485:References
284:, include
160:Variations
92:Advantages
67:drop frame
63:open frame
231:loan word
207:seat tube
203:head tube
144:monocoque
32:Underbone
688:Category
598:April 4,
468:See also
187:top tube
588:"Mixte"
339:Gallery
290:Anglais
286:berceau
175:Peugeot
43:Triumph
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294:jumele
333:cross
329:cross
318:Dahon
308:Cross
282:sport
278:mixte
271:sport
217:Mixte
197:, or
183:mixte
165:Mixte
140:gauge
69:, or
18:Mixte
600:2011
535:ISBN
527:ISBN
300:and
280:and
199:lats
233:is
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