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Old 11-08-10 | 09:57 PM
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chucky
It's got electrolytes!
 
Joined: Aug 2009
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Bikes: Self-designed carbon fiber highracer, BikesDirect Kilo WT5, Pacific Cycles Carryme, Dahon Boardwalk with custom Sturmey Archer wheelset

Originally Posted by Scrodzilla
What crank will you be using?
Odyssey Black Widow Euro Lites. I found this page http://www.recumbents.com/wisil/qfactor/qfactor.htm
and derived the following info from it along with some measurements:

BB=Bottom Bracket Spindle Length
BWQ= Black Widow Q-factor (ie distance between pedals)
BWQ/2=Black Widow Q-factor divided by 2
CR2P(out/in)= Measured distance from chainring to pedal (outer position/inner position)= 23mm/27mm
CL(out/in)= Chainline (outer position/inner position)

BB: 118mm, 107mm, 96mm, 61mm, 53mm
BWQ: 141mm, 130mm, 119mm, 84mm, 76mm
BWQ/2: 70.5mm, 65mm, 59.5mm, 42mm, 38mm
CL(out/in): 47.5mm/43.5mm, 42mm/38mm, 36.5mm/32.5mm, 19mm/15mm, 15mm/11mm

Formulas:
CL(out/in)= (BB+23)/2-23 or (BB+23)/2-27
BB(out/in)= 2CL+23 or 2CL+31
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