Rating 2011's new team of bicycles

Two wheels and pedals, a handlebar, frame, chain and derailleur gears. The bicycle's basic design is so simple and efficient that it hasn't really changed for more than 75 years. But the relentless human urge to improve produces annual refinements in bikes — and maybe none push the envelope like the 2011 models examined below.

Roy Wallack

November 15, 2010