Bike Forums - View Single Post - How to compare Q factor difference between pedals?

10-23-10 | 07:54 PM

#10

Al1943

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Joined: Feb 2005

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From: Oklahoma

Bikes: Trek 5500, Colnago C-50

Quote:

Originally Posted by JiveTurkey

As has been alluded to, the Q-factor is the width of the cranks, which is independent of the pedals. http://sheldonbrown.com/gloss_q.html#qfactor

I think the Q-factor includes the crankset and pedal spindle as described by MichaelW, above. I think the term "Q-factor" originated from the medical term "Q-angle", the angle from the femur to the tibia with the leg extended.

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