Table of contents
- What do the numbers and letters on a tire mean?? Understand tire labels
- Size, carrying capacity and speed
- Speed codes on tires
- How old is the tire?
- Direction of rotation of a tire
- Structure of a motorcycle tire
- More about tires
Fox
accesories
tire
Understand tire labels
What do the numbers and letters on a tire mean??
Understand tire labels
A tire shows a lot of information about itself on its sidewall, e.g. B. its size, its design, its maximum permissible speed, its load index and its age.
Manuel Fuchs
06/29/2017
Size, carrying capacity and speed
So what does the string in the photo mean, for example, 160/60 ZR 17 M / C (69W), I agree?
The first number 160 denotes the tire width in millimeters; in the past, inches were also common. The number after the slash 60 indicates the ratio of height to width in percent: 60 percent of 160 mm means 96 mm height.
For tires with a radial carcass and a mandatory belt (so-called radial tires), a follows R., the one Z for approval above 240 km / h – both can be seen here.
For a tire with a diagonal carcass without a belt (“Bias tires”) would be a hyphen instead
Diagonal carcass tires with belt (“Diagonal belt tires”) at this point marks a B (like “belt”, english for belt).
The next number, here 17th, is the rim diameter in inches.
M / C indicates that it is a motorcycle tire.
The following figure is the load index: the higher the number, the more load the tire can carry. the 69 stands for a maximum permissible load of 325 kg.
The last letter here W., indicates the permitted speed; the tire is therefore approved for 270 km / h.
Speed codes on tires
In detail, the letters that code the permissible speed mean:
- J = 100 km / h
- K = 110 km / h
- L = 120 km / h
- M = 130 km / h
- N = 140 km / h
- P = 150 km / h
- Q = 160 km / h
- R = 170 km / h
- S = 180 km / h
- T = 190 km / h
- U = 200 km / h
- H = 210 km / h
- V = 240 km / h
- W = 270 km / h
- Y = 300 km / h
A tire must be suitable for the maximum speed entered in the vehicle documents + 10%.
A motorcycle that can reach 185 km / h according to the vehicle documents therefore needs tires with the speed index H or higher (185 x 1.1 = 203.5).
How old is the tire?
Fox
Tire lettering: production date.
The DOT number (DOT = Department of Transportation, the US Department of Transportation) encodes the manufacturing plant, the tire size and the tire type.
The production week is noted in the oval field behind it: 1516 means that the tire was manufactured in the 15th calendar week of 2016.
Direction of rotation of a tire
Fox
Tire marking: At least one arrow shows the direction of rotation.
At least one arrow on the tire shows its direction of rotation so that the tread can do its job (e.g. water drainage) in the best possible way.
Structure of a motorcycle tire
Fox
It says outside what can be found inside.
Even the inner workings of the tire are revealed on the outer wall: The tire in the picture has a layer of synthetic fiber (“Rayon”) and a layer of steel (“Steel”) under the tread, as well as a layer of synthetic fiber in the side wall.
Structure of a motorcycle tire.
The carcass plies (A), several on top of each other depending on the design, form the load-bearing structure of the tire.
The belt layers (B) are, as here in radial tires, as a cut belt, only under the tread and are intended to limit the dynamic growth caused by centrifugal forces.
The carcass plies, on the other hand, are wrapped around the bead (C) and, like the apex (D), reinforce the side wall.
The apex sits on the bead core (E) and fills the cavity above it. The bead core itself holds the tire on the rim; it is made of steel wire.
The vulcanized tread (F), too “Treads” called, finally carries the rubber compound available for wear with the profile.
Carcass plies of a diagonal tire.
Diagonal tires have several carcass plies that cross one another, which form a very stiff tire structure, but cause great dynamic tire growth at high speeds and also become very hot.
Carcass plies of a radial tire.
In the case of radial tires, on the other hand, sometimes only one carcass ply runs 90 degrees across the direction of travel. A belt wound in the direction of travel (“zero degrees”) lies above it. This construction is designed for very high speeds.
@media only screen and (max-width: 700px) {.mobil_auszuge {display: none}}
@media only screen and (max-width: 700px) {.list_paidinfos {text-align: left}}
@media only screen and (max-width: 700px) {.button {text-align: center}}
More about tires
Life insurance tires
- Tire tests of the 2016 and 2017 seasons
- Recognize risks: tread depth, age, imbalance
- Special tires in the test
- Tire development at Dunlop
- avoid the hassle of buying online
To the PDF for € 9.99
#image.jpg
Related articles
-
M. Jahn, R. Gluck, Dunlop accesories tire PS knowledge: tire dictionary PS knowledge tire lexicon The ABC of tires Content of Tires aren’t just black and…
-
Tire age, inflation pressure, balancing
Marcus Jahn accesories tire Tire age, inflation pressure, balancing Tire age, tire pressure, tire balancing Motorcycle tires and their problems Even when…
-
The right tire choice for a motorcycle
Markus Jahn 26th pictures MOTORCYCLE 1/26 On the way on alpine passes? That’s how it works! MOTORCYCLE 2/26 Seductive winding curves with risk. The…
-
New Dunlop TT93 GP Pro tire for pit bikes
Dunlop accesories tire New Dunlop TT93 GP Pro tire for pit bikes Dunlop TT93 GP Pro Giant grip for mini racers Anyone who has rank and name in racing…
-
Dunlop 14th pictures Dunlop 1/14 The Dunlop plant is located in Montluçon, France. Dunlop 2/14 125 years after its premiere, the pneumatic tire still…
-
Tire recommendation for the KTM 1290 Super Duke R.
Photo: jkuenstle.de 6th pictures www.r-photography.info 1/6 What are the strengths and weaknesses of the approved pairings for the KTM 1290 Super Duke…
-
Service test of tire manufacturers and buying portals
BILLION 18th pictures Jahn 1/18 Jahn 2/18 The inquiries concerned, among other things, recommended replacement intervals … Lohse 3/18 Exotic brands…
-
2snap 24 pictures 2snap 1/24 2snap 2/24 2snap 3/24 2snap 4/24 2snap 5/24 2snap 6/24 2snap 7/24 2snap 8/24 2snap 9/24 2snap 10/24 2snap 11/24 2snap 12/24…
-
Tire tips: usage, age, storage
Jorg Kunstle accesories tire Tire tips: usage, age, storage Tire tips Use, age, storage Motorcycle tires are black, round and extremely important as the…
-
Tire test 2013: touring tires 120-70 ZR 17, 180-55 ZR 17
Jahn 20th pictures Jahn 1/20 Tire test 2013: 6 touring tires of the dimensions 120/70 ZR 17, 180/55 ZR 17. Jahn 2/20 The same conditions for everyone:…