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Backing it in: Going into a corner with the rear of the motorcycle sliding while the rider is counter-steering. This is a way for a rider to slow the bike and set it up for a fast exit from the corner.
Bottom out: When the suspension runs out of travel and bumps against its internal stops.
Brake marker: A track indicator placed off to the side of the track, marking a spot where a rider may wish to begin braking for a turn.
Chicane: A part of the track consisting of back-to-back left and right turns. Chicanes can be a part of the original track, or can be created, using cones and hay bales, to control the riders’ speed for safety.
Esses: A series of turns with quick left and right transitions.
Green track: A new track with no tire rubber worn into the surface, which can be slippery.
Hairpin: A very slow, sometimes 180-degree, corner.
Head shake: When the handlebars shake back and forth due to improper chassis set-up or bad bumps. Can develop into a tankslapper.
High-side: A type of crash in which the back of the motorcycle starts to slide out, then catches traction — most often flipping the rider over the “high side” of the bike and onto the ground.
Leathers: The skin-tight leather suit a rider wears on the track. Racing leathers feature special, sturdy stitching, abrasion-resistant hides, and foam and plastic armor at key points such as the back, knees, elbows and shoulders. Leathers are cut to fit a rider when he is sitting on the motorcycle, so they appear ill-fitting when he’s walking around in the pits.
Low-side: A crash when the rear wheel, or both wheels, loses traction and slides away.
Pits or The Pit: Where the racing teams park their trucks and set up makeshift garages to work on the bikes and house the riders.
Pit lane: The lane on the inside of the track, usually adjacent to the main straight, where riders come in to have quick work or tire changes on their motorcycles.
Pucks: The plastic knee skids, attached to a rider’s leathers with hook and loop material, that riders wear to slide their knees through the turns. The riders use their knee skids to judge their angle of lean, and sometimes hold up the motorcycle if it begins to wash out from under them.
Sweeper: A broad high-speed turn.
Tank-slapper: When the handlebars violently shake left and right due to improper chassis set-up or nasty bumps. Can result in a loss of control.
Trail-braking: Keeping the brakes on late into a corner, after initial braking has taken place.
Tuck the front: When the front wheel slides and the handlebars turn into the corner, while taking a turn.
Wash out: When cornering, having the front wheel break loose due to a loss of traction. This usually results in a crash.

MEANING of the FLAGS
Checkered Flag: First across wins, everyone else: race over.
Black Flag: Rider disqualified.
Blue Flag: Yellow Stripe: Shown to a rider who must move over as he is being lapped by a faster rider.
Green Flag: Signals the start of a race and a race in progress when everything’s a “go.”
Red Flag: Race stopped.
White Flag: One lap left to race.
Waving Yellow Flag: Extreme caution, slow down. Could be a pack of riders down on the track.
Yellow Flag: Caution, slow down.

Published by; Paul.v.D. (webmaster@gsx-r.eu)