knobbies: Tires with knobby or bumpy tread patterns. Knobbies provide more traction on mud and other soft surfaces, but perform poorly on pavement.
KOM: King of the mountains; a points competition for the best mountain climber in the Tour de France.
lead out: A racing strategy. One rider races at high speed while a second rides in his or her slipstream. A lead out is designed to give the second rider a head start.
lined out: Riders in a long line, spaced out due to the struggle of keeping up with the lead rider.
maillot à pois: The polka dot jersey worn by the winner of the King of the Mountains contest.
maillot blanc: A white jersey, worn by the best rider under 25 in the Tour de France.
maillot jaune: The yellow jersey worn by a race leader.
maillot vert: Jersey given to the leader of the Tour de France's sprint points competition.
neo-pro: "New pro;" a rookie just entering professional bicycling.
noodle: Curved tubing that guides brake cables around right angle bends.
out and back: A race where the return stage retraces the first stage.