Supersport bikes are advanced-level, high-performance oriented motorcycles designed for street use. Cost of ownership is typically slightly higher than that of less exotic sportbike motorcycles.
Sportbikes are entry-level, performance oriented motorcycles designed for street use. They are typically economical to own and operate.
The Society of Automotive Engineers (SAE) International has produced a simple, consistent and economical sound test standard that can be used to determine whether a streetbike (on-highway motorcycle) exhaust system emits excessive sound, the American Motorcyclist Association (AMA) reports. The J2825 “Measurement of Exhaust Sound Pressure Levels of Stationary On-Highway Motorcycles,” issued by the SAE [...]
A screw or bolt extractor is a device used to remove broken bolts, screws and fasteners. They are available from most motorcycle and automotive stores.
An electrical failure in which the current flow bypasses (takes a shortcut before) the resistance of the load and goes directly to ground. Short circuits can result in blown fuses, melted wires and damaged components.
Refers to the relative weight of a fluid as compared to an equal volume of distilled water. It is common to check the specific gravity of engine coolant and battery electrolyte to determine if they are within specification using a tool called a hydrometer. There’s even a type of hydrometer that tells you when your [...]
When the piston in a motorcycle engine moves from TDC (Top Dead Center) to BDC (Bottom Dead Center) or from BDC to TDC – the distance traveled is referred to as the stroke. The stroke takes one half of a revolution of the crankshaft.
A device which uses mechanical or hydraulic friction to reduce motorcycle steering oscillation at high speeds.
A drum brake system having two brake shoes; one shoe is leading and one is trailing. The leading shoe wedges itself into the drum, providing more braking action than the trailing shoe.
A motorcycle frame that has one down tube from the steering neck to the front of the engine.


