It means calm and reserve to me, perhaps coupled with a careful observation of one's manners. It's not exactly a manner of dress or speech- more a way of behaving. Bashfulness and modesty doesn't bring anything but good.
The Rca frame and basic hardware weigh less than 1.5 pounds, keeping the bike's total built weight to about 10 pounds. Tour de France riders must add ballast to hit the race's 15-pound minimum. Drag consumes up to 50 percent of a racer's energy when he's in a pack, 90 percent when he's riding alone. The tubes of the Rca frame are teardrop-shaped in cross section, improving aerodynamics.
Around the Academy: The leader of the young rider category in the Tour de France wears a white jersey. The category began in 1975 and is awarded to the highest placed rider under the age of 25. The young Russian rider Denis Menchov finished 11th overall in the 2003 Tour and won the white jersey in Paris.