Learn Motocross Racing Terminology

June 20, 2012 -- American Motorcycle Association
AMA
American Motorcyclist Association
CC
Cubic centimeters in reference to engine displacement.
Claiming
Procedures for competitors to purchase motorcycles or parts that another competitor has used in final event competition.
Displacement
The space covered or volume swept out by the engine piston at each stroke.
Disqualification
Unless otherwise specified, the forfeiture of all points, awards and prizes earned during a particular race.
Flaggers
Workers stationed at various points around the track to advise riders of track conditions by using different color flags. Also known as "corner workers."
Get Off
A crash
Heat Race
A qualifying race determining which riders advance to the main event.
High-Side
A crash where the rider goes over the top of the bike, as opposed to laying it down, or a "low-side."
Hole Shot
Taking the lead into the first turn of a race.
Homologation
The process of acquiring eligibility for a motorcycle to be entered in competition. Homologation rules are formulated to create parity among race bikes, and to maintain a level playing field for competitors.
LCQ
Last Chance Qualifying race: where a limited number of top finishers advance to the main event.
Line
The fastest way around the track, or through a particular part of the track. Can vary with changing course conditions.
Lites
A class for 125cc two-stroke and 250cc four-stroke equipment in AMA Supercross and AMA Motocross Championships.
OEM
Original Equipment Manufacturer.
Pit/Paddock
Area primarily designated for the preparation and maintenance of race equipment. May also include parking for transporters and other support vehicles.
Pit Crew
Mechanics and/or team assistants.
Privateer
A racer competing without benefit of a factory contract or major sponsor support.
Program
The predetermined outline of events that make up a race.
Qualify
To advance to the final race event by time trial or finish position in a heat race.
Seize
When an engine fails due to excessive heat buildup.
Stoppie
Riding on the front wheel only, usually under hard braking.
Thumper
Descriptive term for a four-stroke motorcycle engine in regard to the deep sound of the exhaust.
Wheelie
Riding on the rear wheel only, usually under hard acceleration.
Wrench
Slang for mechanic.
Works
Refers to parts being tested in competition by a manufacturer.

Provided by the American Motorcycle Association.

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