Cookies on the Michelin Site

For an optimale navigation, MICHELIN website use navigation cookies. Click on the   link for more informations Validate

Your recent

Welcome to your history toolbox

We've saved important information from your previous searches to make your life easier.



Last tires viewed

Last dealers viewed

Last searches

Find your perfect MICHELIN® tire in seconds Perform a search to see if this tire fits your vehicle
ex. BMW HP2 Megamoto 2016

Tire Glossary :

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z


Abnormal wear and tear

Unusual tire wear and tear which may be due to improper wheel balance, the suspensions being in bad shape, or a variety of hostile external factors, etc.


The anti-lock braking system aims to reduce the loss of grip during braking. The system works by partially releasing the brakes every time the wheel begins to lock up, thus preventing the tire from sliding on the road (loss of grip), and increasing the overall ability of the brakes to work effectively.


Michelin Adaptive Casing Technology
The carcass enables the rigidity of the tire to adjust to the camber angle. Therefore, depending on the camber angle, the tire gradually goes from having a flexible top ensuring stability on straight stretches, to increasingly rigid shoulders depending on the lean angle taken by the motorcycle. This provides optimal performance around curves.


Amplified Density Technology A high-density, stiffer carcass provides for superb maneuverability and responsiveness. Aramid fiber layers on top in back combine resistance with a lightweight feel for perfect stability, even at high speeds.


Loss of grip at high speeds caused by a film of water between the tire and road, making it slippery.

Back to top



Part of the tire that fits to the motorcycle rim.

Bib Mousse

Bib Mousse replaces the inner tube of the motorcycle tire. It is mainly used for Off-road, Motocross, Trial, MX, and Enduro tires, etc. It is already full, which means you can enjoy puncture-free riding without having to check its pressure.


Cylinder diameter

Back to top



This is the internal part of the tire, making up its structure. The carcass supports the entire strain put on the tire. It is made of steel and textile cord layers, upon which the belt and then tire tread and sidewalls are fitted.

Contact patch

Also referred to as the "footprint," this patch corresponds to the area of contact between the road and your tire.

Back to top



When we talk about a tire’s diameter, we always mean the interior diameter, or the diameter of the rim. It is expressed in inches (1 inch = 2.54 mm).


Acronym for the U.S. Department of Transportation. This inscription on the tire's sidewall confirms that the tire complies with the requirements of this agency.

Back to top



Good equilibrium is equivalent to good distribution of the mass of the tire/wheel ensemble compared to its axis of rotation.

Engine displacement

Engine displacement designates engine capacity in cc or cylinders. It largely determines the power of a motorcycle’s engine.

Back to top



Symbol indicating that the tire is approved by the FIM for enduro (with grooves that are 13 mm deep).


Contact zone between the tire and the road (also referred to as contact patch).


A tire that can be installed both on the front or the back of your motorcycle.

Back to top



Also called tread grooves, grooves are the spaces between two adjacent tread ribs on the tire tread.

Back to top



Difficult terrain requiring harder rubber.

Back to top


Internal rubber

The inside rubber is a layer of synthetic rubber, which is the modern equivalent of the tube, and whose function is to guarantee the tire's impermeability.

Back to top



Layer making up the belt


A rubber coating providing tubeless tires with their impermeability

Load index

Numbered index indicating the maximum weight supported by a tire inflated with the recommended pressure.


Low Rolling Resistance

Back to top



"Mud and snow," or special winter tires that can be used on these two types of terrains.

Back to top



Not approved for street use

Back to top



Circular metal part of the wheel upon which the tire is fitted.

Back to top



Tires suitable for sandy race tracks

Section height

Tire height between the top of the tire tread and the base of the bead.

Section width

Distance separating the outsides of the tire sidewalls


The outside part of the tire tread allowing for the junction with the sidewalls.


The tire's external wall between the tire tread shoulder and the bead. It protects the tire from shocks (potholes, cobblestones, etc.). This strong rubber component also houses the markings providing the tire's essential information.


Special vents found on the part of the tire in contact with the ground. They improve street performance when the surface is not ideal (rain, ice, snow).


Smooth tires


Mixed-to-soft terrains requiring a softer rubber

Speed index

Numbered index indicating the maximum speed the pneumatic tire can handle.


Indicates the composition of the tire carcass layer


Super soft rubber, suitable for soft terrains

Back to top


Tire tread

This is the outer part of the tire which is in contact with the road. Its job is to guarantee grip in all conditions (dry, wet, etc.) as well as contribute to steering precision. Because this part cannot escape the effects of deterioration, it must be as resistant to wear and tear as possible.


Corresponds to the tire tread design


This is an inflatable rubber tube located between the tire and the rim.

Tube Type(TT)

Tire consisting of a tube


Tubeless tire. It remains impermeable thanks to its internal rubber, which is in direct contact with the tire carcass.

Back to top



The component that allows for air to be distributed evenly into the tire. It prevents air from leaving the tire, and prevents dust from infiltrating the inside. This valve is located on the tube for tires with tubes, and on the rim for tubeless tires.

Back to top


Wear and tear

Damage and deterioration that can be seen on the tire.


Tire suitable for riding on wet surfaces.


Assembly of the rim with a disc or veil

Back to top