SECTION 2 - DEFINITIONS
The following definitions and abbreviations are provided to clarify the meaning and intent of this handbook.
AHRMA “Regional Championship” or AHRMA “State Championship”: a single meet per year as authorized in writing by AHRMA; the terms “area,” “regional,” “national” and “national championship” or “series championship” shall not be used in relation to AHRMA events without written permission of AHRMA and an AMA sanction.
Amateur riders: participants in an AHRMA amateur event.
Amateur meet: an event in which prizes, trophies, certificates or merchandise are awarded the participant.
cc: cubic centimeters.
Complete lap: A lap in which all participating riders have passed the finish line under the green flag.
cu. in.: cubic inches.
DNF: “Did not finish.” Points may be awarded; consult the rules for each form of competition.
Entrant: Every person who participates in an AHRMA competition event as an owner, co-owner, rider, official, sponsor, mechanic or crew member.
GP kitted: low handlebars (2-inch maximum rise above the top of the fork crown), rearset footrests (at or aft of the swingarm pivot), no lights, no street equipment or related brackets of any type (factory-welded brackets may be retained). Fairings are encouraged (required in Formula 750).
Historic Cup Series: events or meets that comprise the annual AHRMA-approved national-championship roadracing series.
License: the one-year All Form Competition License purchased in conjunction with AHRMA membership.
Like design: any motorcycle or part produced or reproduced after a cutoff date that is essentially unchanged from that produced prior to the cutoff (e.g., 1974 Norton Commando is essentially the same as the ‘72 model).
Machine: one frame, its frame number, one engine in that frame and that engine’s serial number.
Major component: unless otherwise specified, includes frame, forks, hub assemblies, crankcases, cylinders, heads and gearboxes.
Management system: A series of sensors or monitoring devices attached to different points on the engine exhaust system or intake system to signal ECM for dynamic programmed correction or adjustments for optimum engine performance.
Manufacturer: the original equipment manufacturer for the machine; not a distributor for the machine; not a dealer for the machine; not the constructor of a “special.”
Meet: a competitive activity including but not limited to roadrace, motocross, observed trials, sidecar or dirt-track; also may refer to road-riding or concours d’elegance.
Moto: a timed activity in a motocross meet.
Motorcycle: a two-wheeled motorized vehicle of street or competition variety; single-engined; not a sidecar.
OEM: original equipment manufacturer.
OHV and OHC: overhead valve and overhead cam engines; for example, a Triumph Bonneville and Norton Manx, respectively.
Owner: a person who owns, manages or controls - or appears to own manage or control - one or more motorcycles that regularly compete in AHRMA sanctioned roadrace events, which are not regularly ridden by such person in AHRMA competition. Such person shall be required to hold an AHRMA competition license and may be responsible for the action of all his/her team members and riders. Penalties levied against a rider of a team may also be levied simultaneously against the team owner, or the team owner may be penalized alone for violations of rules by his riders or motorcycles. A team owner who does not have a valid AHRMA competition license shall be barred from in any way participating in an AHRMA competition event and riders of such team or its motorcycles may not participate in AHRMA events.
Performance index: When a motorcycle is demonstrably faster or slower than others in its displacement group, it may at the discretion of the review committee be assigned to another class.
Period: The period in history encompassed by a class.
Piston displacement (or displacement): the volume swept by the piston or pistons at each stroke; may be measured in cubic inches or cubic centimeters.
Pit crew: any mechanics or assistants to the rider entered in a meet.
Promoter: Any officially AMA-sanctioned and AHRMA-approved organization holding, proposing to hold or otherwise organizing an AHRMA event. Promoters shall be approved in writing by AHRMA. “Promoter” may be substituted for “organizer.”
Rider: any person (or the case of sidecar events, the sidecar driver and passenger) who has signed the required entry forms and who competes in a meet.
Sidecar: a motorcycle permanently attached to a single-wheeled sitting or kneeling platform; single-engined; not a motorcycle.
Sidevalve (SV) or flathead: an engine with valves that are not operated in an OHV or OHC manner; typically, a KR Harley- Davidson.
Valves: All references to the number of intake/exhaust valves are the number of valves per cylinder.
< previous section – next section >