What is a rice burner motorcycle

Everything about motorcycle tires

Tire Lexicon

Tire Lexicon

Balancing
An uneven mass distribution in the tire causes vibrations when the wheel rotates. During balancing, a counterweight is fixed exactly opposite the imbalance on the rim.

Types
Bias tires - Classic tire construction in which the threads of the individual carcass layers run diagonally to one another.
Diagonal belt tires - A further development of the diagonal tire, in which there are one or two layers (belts), mostly made of rayon, under the tread. These belts limit the expansion of the tire by centrifugal force.
Radial tires - Has a carcass ply, the threads of which run at a 90 ° angle (radial) to the direction of travel. Together with one or two additional belt layers, this gives shape stability even at high speeds. Few layers of fabric also mean little flexing work.

Self-damping
Desirable property of a tire that increases comfort and grip on bumps and reduces the tendency to swing at high speeds, handlebar bumps and handlebar flutter.

Retract
Indispensable because there is a release agent on the tread of the factory tire, which allows the new rubber to be easily removed from the vulcanization mold. In addition, the surface is initially very smooth and has to be roughened through contact with the road. Tire manufacturers recommend 200 km.

Flank (Side wall)
Most flexible component of a tire. On the one hand, it must be stiff enough to transfer braking and acceleration forces, but must not be too stiff due to suspension and damping tasks. A high flank supports comfort and self-damping, a low flank increases precision and high-speed stability.

Brand loyalty / approvals
In the case of high-horsepower, fast motorcycles in particular, not only the tire size but also the make and / or profile are entered in the vehicle documents. It is possible to deviate from this if the designation on the tire (e.g. 160/70 B 17 73V) completely matches the information in the vehicle documents and the tire has a European approval mark. Or there is an officially confirmed approval certificate from the vehicle or tire manufacturer, which states that this tire can be used on the motorcycle in question without restriction.

carcass
The load-bearing element of the tire substructure, the basic structure of every tire, which gives it shape and stability. Nowadays it mostly consists of high-strength synthetic fiber layers (rayon, nylon).

Apex
Is part of the rubber bead that fills the cavity created by the carcass turn-up to reinforce the sidewall.

Tread
Outer layer of the tire that makes contact with the road surface. Today it consists exclusively of synthetic rubber and is vulcanized onto the carcass at high temperatures.

storage
Tires should be stored horizontally, a maximum of four on top of each other.

Air pressure
Should be checked once a week when the tires are cold as specified in the driver's manual. Air pressure that is too low worsens driving behavior and leads to increased flexing work, which can result in tire damage. Excessive air pressure has a negative effect on driving comfort and increases wear and tear.

Mixed tires
The use of tires of different types is only permitted with the appropriate approval.

Multi compound
Generic term for tires with rubber compounds of different hardness on the tread, e.g. B. hard in the middle for high mileage and soft on the shoulders for good lean angle grip.

Ply
English term for layer which, in conjunction with a number, indicates the amount of individual fabric or belt layers.

profile
A distinction is made between positive and negative profiles. The positive profile is the part of the tire that maintains contact with the road surface, i.e. is responsible for grip. The negative profile, i.e. the depressions in the tread, absorbs water and hurls it backwards.

Tread depth
Important element of water displacement - the deeper, the better. The StVZO requires 1.6 mm profile depth, but replacement is recommended when the remaining profile depth is 2 mm at the latest. Recutting the profile is prohibited.

Silica
Another word for silica gel. As part of the rubber compound of the tread, this material ensures both wet and cold adhesion of the tire as well as high mileage and low rolling resistance.

Valve cap
The cap should always be screwed on and, if possible, have a sealing ring. The cap prevents air loss at high speeds or with a defective valve insert.

Vulcanize
The connection of the individual tire components (carcass layers, tread, possibly belt) with one another in a heating press at around 170 ° C and a pressure of around 20 atmospheres.

Flexing
Deformation of the tire due to external influences such as acceleration, braking or the condition of the road surface. The carcass layers move, creating frictional heat. Too little air pressure leads to increased flexing work.

bead
The inner ring of the tire, so to speak; at this point the carcass ends are wrapped around the bead core.

Bead core
Consists of one or more steel wires that hold the tire firmly on the rim. The number and arrangement of these wires determine the stability of the tire.