I want to be Bill Russell and 6'9" tall or short like Willie Shoemaker and ride to fame and fortune. The fact that she is 100 pounds lighter means she has less body mass i.e body strength which is his advantage. Get over it crybaby. /working class rant off
The only place I can see where weight would be a factor is if you raced motocross. 100 pounds would make a BIG difference when the bikes only weigh 200-250 pounds. (Except on a wet, slick track. Weight = traction)