Anthropometric Bicycle Research Assignment

TST 161 - Creative Design - Dr. Asper


There has been a growing number of television programs dealing with the 
design and building of unique custom built Chopper Motorcycles. A bicycle 
manufacturer, who wants to capitalize on this renewed interest in the 
chopper motorcycle, has approached you to design a bicycle based upon this 
styling concept. The client however wants to maintain appropriate 
anthropometric considerations in this design. 

Your assignment then, is to research the chopper motorcycle styling 
elements, and incorporate these elements into an anthropometrically 
correct bicycle. As a starting point, you will use your personal manikin 
to scale the first prototype "Chopper Bicycle". The goal of this design 
will be to apply the chopper motorcycle styling to a bicycle while 
attending to your personal bicycling comfort. Therefore, your 1/4 scale 
manikin will need to fit a 1/4 scale drawing of your design. With a view 
to economy, you will specify standard bicycle wheel sizes, and standard 
pedal and crank dimensions. Your research will need to determine standard 
sizes for these parts. The manufacturing client has also decided that he 
would like to see a 45 degree front fork angle. You will therefore need to 
consider both steering and pedaling from your designed seated position. 

The submittal of your design will include at least a dimensioned, 1/4 scale, 
side view drawing of the chopper bicycle, including annotations 
concerning materials, etc. You will probably need a larger piece of paper 
for this presentation. Your personal manikin will fit this drawing.  
The design presentation to the client will also include an isometric or  
perspective presentation drawing of the chopper bicycle including appropriate 
shading, shadow and texture. This illustration does not need to be 1/4 scale.

Note: although the term bicycle is used generally to describe a two-wheel 
vehicle, for the purpose of this design problem you might also consider a 
three-wheeled (tricycle) vehicle. 


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Evaluation Anthropometric Bicycle

___________________________________ General Comments ________________________________________________ ______ Quality overall craftsmanship. (15) ______ Fulfill "Chopper" design request (15) Standard bicycle wheel sizes, Standard pedal and crank sizes, & 45 degree front fork angle. *********************************** ______ Dimensioned, ¼ scale, side view drawing. (10) ______ Appropriate annotations. (10) ______ Fit of the "Personal Manikin" with pedaling system (8) ______ Fit of the "Personal Manikin" with steering system (7) *********************************** ______ Isometric/Perspective Drawing (20) ______ Shading (5) ______ Shadow (5) ______ Texture (5) ____________ Total Score

The following photographs were taken from the Spring 2007 submitted designs.

Return to Norm Asper's web page.