Even in hilly races aerodynamics is more important than weight
a) True   b) False

Aerodynamics are so dominant as the most important consideration in wheels that other variables like weight are secondary even in hilly races.  Wheel related aero improvements of 30 grams of drag --1% of a typical rider's drag -- can be achieved while riding uphill.  This improvement overwhelms even a large 1/3 pound difference in weight for riders as small as 100 lbs -- this energy loss is only 1/3%.  In addition, energy requirements for carrying weight are a penalty only while climbing, typically less than 25% of the time in hilly races, while aero improvements benefit at all times.  

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