Quote:
Originally Posted by Mark McM
I'll believe that when I see it. Many times potential advantages have been promised, and yet they never come to pass. We were told that tubeless tires would be lighter, have better traction, and lower rolling resistance, yet this hasn't happened. We've been told that disc brakes will allow wheels to be more aerodynamic, but this hasn't happened either. Exactly how do you imagine that rims can be reshaped for aerodynamics that rim brakes don't allow? Some have clamed that disc brake wheels don't need to have parallel sidewalls, which is true - but neither do rim brakes. I've got several sets of rim brake wheels with sidewalls (brake tracks) angled for aerodynamics.
This may be yet another case of counting your chickens before they hatch.
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As far as aerodynamics for disc only wheels, since you no longer need a flattish brake track could wheel designers more fully optimize the shape of sidewalls to improve wheel/tire intersections from an aero perspective?
I do not know if the above is possible, just asking the question.