A hub of online professional and topical glossaries/dictionaries
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1% ER (ONE PERCENTER) OUTLAW BIKER  look up translate image
A biker who's beliefs and/or actions are outside (or not accepted by) the common public.
13  look up translate image
13th letter stands for Motorcycles or Marajauna.
2 SECOND RULE  look up translate image
The minimum gap or distance between two vehicles travelling in the same direction. As the vehicle in front of you passes a particular mark on the road or sign along the road, count two seconds and your vehicle should pass the same mark or sign. If road conditions are poor, the gap should be extended to three seconds or more. If you are following less than two seconds, there is not sufficient time to react to emergency evasive manoeuvres to avoid the possibility of hitting the vehicle in front. When...(more)
ABS  look up translate image
1. Anti-lock braking system. System that senses when a tire is about to loose traction during braking and decreases braking force, preventing tire lock up. 2. The ABS detects when a wheel is not turning and releases pressure to the brake on that wheel, preventing a skid. 3. A component added to the braking system that detects wheel lock up. The system then modulates the brakes at that point with the idea of stopping you faster than you could yourself.
ACCELERATOR PUMP  look up translate image
Extra pump in the carburetor to temporarily increase the amount of fuel delivered to the air stream.
AERODYNAMICS  look up translate image
In motorcycle context, good aerodynamics means that the motorcycle is designed to have as little resistance from the air as possible. This is essential to achieve great speeds. The manufacturers often make use of wind tunnels during the development of a new motorcycle.
AFFA  look up translate image
Angels Forever Forever Angels
AFTERMARKET  look up translate image
The sector of the market that sells parts and accessories other than OEM (Original Equipment Manufacturer... ie, Honda, BMW, Suzuki, Harley-Davidson, etc.)
AIR  look up translate image
80% nitrogen, 19% oxygen, some carbonic gas and minor trace elements.
AIR COOLING  look up translate image
The direct removal of heat from an engine by the passage of air over it. The engine's surface area is increased by adding fins.
AIR FILTER  look up translate image
Air entering the carburettor is filtered to remove dirt. Filters are made of paper, fabric, oiled gauze or oiled plastic foam.
AIR FUEL RATIO  look up translate image
Proportions in which air and fuel are mixed to form a combustible gas.
AIR INTAKE VALVES  look up translate image
Reed Valves
AIR LOCK  look up translate image
Similar to vapor lock, a pocket or air develops that blocks the normal flow of a fluid, such as in a hydraulic brake line. Common in two stroke engines when the oil injection system is allowed to run dry.
AIR SPRINGS  look up translate image
Suspension system using compressed air instead of coil springs. The air is contained in a rubber bag or cylinder.
AIR/FUEL RATIO  look up translate image
The proportions in which air and fuel are mixed to form a gas which will burn.
AIRHEADS  look up translate image
A term for older, air-cooled BMW Boxer Twins.
AIRTEX  look up translate image
Mesh-like, highly tear-resistant Dynafil polyamide weave.
ALLOY  look up translate image
A solid or homogenous solution that is a mixture of two or more metals to create a combined metal with better characteristics for a specific purpose.
ALTERNATOR  look up translate image
Modern replacement for the dynamo generator, producing large quantities of alternating current to run the electrical systems of a motorcycle.
AMA  look up translate image
American Motorcycle Association.
AMMETER  look up translate image
Gauge that measures amps in electrical current.
ANALOG GAUGES  look up translate image
Shows information in a continuous forum, often a dial; often considered the opposite of digital gauges. Old school gauges.
ANCH'S OR ANCHOR  look up translate image
ANODIZING  look up translate image
A technique used to coat the surface of a metal with an oxide layer. It may be used to increase corrosion resistance, increase wear resistance, allow dyeing or prepare the surface for other processes and coatings including paint. Anodization changes the microscopic texture of the surface and can change the crystal structure of the metal near the surface. The process derives its name from the fact that the part to be treated forms the anode portion of an electrical circuit in this electrolytic process.
ANTI-DIVE SYSTEM  look up translate image
A front-end suspension component that reduces how much the forks compress under braking, popular with motorcycles built in 1980s.
APERTURE  look up translate image
An opening, hole or port.
APES OR APE HANGERS  look up translate image
1. Handlebars that are very high, and which often raise the rider's hands above his or her shoulders. High handlebars so Biker's hands are at or above their shoulder height.. Refers to a handlebar style where the handgrips are located at a higher position, so as to enable the rider's arms to "hang" Picture "Clyde" from "Every Which Way but Loose" and you'll get a perfect understanding of the riding position.

2. Very high handlebars. Usually found on choppers.

3. A term coined at the height...(more)
APEX  look up translate image
The vertex of tightest (middle or centre) point of a curve.
API  look up translate image
American Petroleum Institute.
AQUAPLANING  look up translate image
A layer of water can build up between the tyre and the road when riding in rain. This causes loss of directional control and braking ability.
ARMACOR (GORE-TEX ARMACOR)  look up translate image
A new kind of highly tear-resistant material combining Kevlar and Cordura with the first class weather properties of GORE-TEX in a 3-layer laminate.
ASE  look up translate image
National Institute for Automotive Service Excellence.
ASPECT RATIO  look up translate image
The ratio of the height of the wall of a tire to the width of the tread expressed as a percentage. Section height divided by section width equals aspect ratio. If the section height is one half the section width, the aspect ratio is 50%.
ATGATT  look up translate image
All The Gear All The Time - This refers to a safety attitude which presumes that safety gear should always be worn when riding a motorcycle regardless of temperature, distance to be ridden or peer pressures that might encourage not doing so.
ATM  look up translate image
All Things Motorcycle
AUTOMATIC  look up translate image
clutch Also known as a centrifugal clutch. One in which the speed of the engine determines whether or not the drive is transmitted. Found on many mopeds.
AUTOMATIC GEARBOX  look up translate image
One in which the ratios are changed automatically in response to engine revs and road speed.
B. F. H.  look up translate image
Big F@#$ing Hammer used to remove rusted axles, bearing cups from the frame neck etc.
B.R.A.G.  look up translate image
Buell Riders Adventure Group.
BAB (BORN AGAIN BIKER)  look up translate image
Someone who has recently returned to riding after a period of absence and really ought to get some advanced training" Matt the Rat
BACK DOOR  look up translate image
The last (and most experienced) rider in a group ride.
BACK MARKER  look up translate image
A slow rider marking the back of the pack.
BACK WARMER  look up translate image
A girl on the back of your motorcycle.
BACKFIRE  look up translate image
Explosion of the fuel in the intake manifold or carburetor, but often used to describe the explosion of unburned fuel in the exhaust system.
BACKING IT IN  look up translate image
A move brought from dirt track racing where a rider approaching a corner brakes hard and causes the rear of the motorcycle to slide while counter-steering. This enables the rider to quickly go through the corner and straighten up for a fast exit.
BAFFLE  look up translate image
Sound deadening material that sits inside a muffler and quiets the exhaust note
BAGGER  look up translate image
A motorcycle equipped with saddlebags and other touring amenities.
BALACLAVA  look up translate image
A head and neck "sock" with mouth and eye slits.

  • balaclava.jpg [3.98 KB]
  • BALLISTIC NYLON  look up translate image
    A specific nylon developed by Dupont for the U.S. Department of Defense for use in flak jackets. Later it was replaced by Kevlar. The basket-weave construction helps add abrasion resistance as opposed to a plain weave. The name is used as a marketing tools with ballistic sounding like something "bulletproof" therefore really tough. May motorcycle apparel companies us the word "Ballistic" when describing material. In many cases the materials tear and abrasion strength does not meet a minimum standard for motorcycle apparel and the word is used only as a sales gimmick.
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    Motorbike terms
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    Created by admin
    Created on 2011-05-01 21:25:11
    Number of terms 1153
    Last added None
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