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what is the most commen tire size in vehicles from 02 to 08

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Alphanumeric code on the sidewall of tires, specifying information such as dimensions and limitations

Assorted new motorcar tires with a multifariousness of tread patterns and different sizes

Automotive tires are described by an alphanumeric tire code (in North American English language) or tyre code (in Commonwealth English), which is generally molded into the sidewall of the tire. This lawmaking specifies the dimensions of the tire, and some of its primal limitations, such as load-bearing power, and maximum speed. Sometimes the inner sidewall contains information not included on the outer sidewall, and vice versa.

The lawmaking has grown in complexity over the years, as is evident from the mix of SI and USC units, and ad-hoc extensions to lettering and numbering schemes. New automotive tires frequently have ratings for traction, treadwear, and temperature resistance (collectively known as The Uniform Tire Quality Grade (UTQG) ratings).

Well-nigh tires sizes are given using the ISO metric sizing system. Yet, some pickup trucks and SUVs use the Light Truck Numeric or Light Truck Loftier Flotation system.

National technical standards regulations [edit]

DOT code [edit]

The DOT code is an alphanumeric grapheme sequence molded into the sidewall of the tire and allows the identification of the tire and its age. The lawmaking is mandated by the U.S. Section of Transportation[one] but is used worldwide.[2] The DOT code is also useful in identifying tires discipline to production recall[3] or at cease of life due to historic period. Since 1st February 2021 UK vehicle Regulations practise not permit the apply of tyres over 10 years sometime on the front steered axle(s) of heavy goods vehicles, buses and coaches. The ban also applies to all tyres in single configuration on minibuses. In add-on, it is a requirement for all tyres on these vehicles to display a legible date lawmaking.

ETRTO and TRA [edit]

The European Tyre and Rim Technical Organisation (ETRTO) and the Tire and Rim Association (TRA) are 2 organizations that influence national tire standards. The objective of the ETRTO include aligning national tire and rim standards in Europe.[4] The Tire and Rim Association, formerly known every bit The Tire and Rim Clan of America, Inc., is an American trade organization which standardizes technical standards.[five] In the United States, the Function of Vehicle Safety Compliance, a component of the Department of Transportation, is 1 of the agencies tasked to enforce the Federal Motor Vehicle Safety Standard (FMVSS).[half dozen] Canada has published tire regulations, such as the Motor Vehicle Tire Safe Regulations SOR 95-148.[7]

E-mark [edit]

All tires sold for road use in Europe after July 1997 must conduct an E-mark. The mark itself is either an upper case "E" or lower case "e" – followed by a number in a circle or rectangle, followed by a farther number. An (upper case) "E" indicates that the tire is certified to comply with the dimensional, performance and mark requirements of ECE regulation 30. A (lower example) "eastward" indicates that the tire is certified to comply with the dimensional, performance and marking requirements of Directive 92/23/EEC. The number in the circle or rectangle denotes the country code of the government that granted the type approval. The last number outside the circumvolve or rectangle is the number of the blazon approval certificate issued for that particular tire size and blazon.[eight]

ISO metric tire codes [edit]

Tire identification diagram
Tire diameter (inches) = (xxx*yy/1270)+zz, where tire size is normally written "Pxxx/yyRzz" on the sidewall. Note, "xxx" is tread width in mm. "yy" is "aspect ratio" (sidewall height to tread width). "zz" is cycle diameter (inches).

The ISO metric tire code consists of a string of letters and numbers, as follows:[nine] [10]

  • An optional letter (or letters) indicating the intended use or vehicle class for the tire:
    • P: Rider Car
    • LT: Light Truck
    • ST: Special Trailer
    • T: Temporary (restricted usage for "space-saver" spare wheels)

P indicates that the tire is engineered to TRA standards, and absence of a letter indicates that the tire is engineered to ETRTO standards. In practise, the standards of the two organizations have evolved together and are fairly interchangeable, but not fully, since the load index will be different for the same size tire.[xi]

  • 3-digit number: The "nominal section width" of the tire in millimeters; the widest point from both outer edges (side wall to side wall). The tire surface that touches the route usually has a narrower width (called "tread width").
  • /: Slash character for character separation.
  • 2- or 3-digit number: The "aspect ratio" of the sidewall pinnacle as a percentage of the nominal department width of the tire. If the information is omitted, information technology is assumed to be 82% (if written, it should be like 30/82). If the number is larger than 200, then this is the bore of the unabridged tire in millimeters.
  • An optional letter indicating the speed rating of the tire. Alternatively, the letter may appear at the cease, following the load index. If the letter here is Z, indicating a maximum speed in excess of 240 km/h (149 mph), then a more specific letter W or Y may appear after the load alphabetize (encounter speed rating, below).
  • An optional letter indicating construction of the cloth carcass of the tire:
    • B: bias belt (where the sidewalls are the same material every bit the tread, leading to a rigid ride)
    • D: diagonal
    • R: radial
    • if omitted, it is a cantankerous-ply tire
  • 1- or ii-digit number: Diameter in inches of the bicycle that the tires are designed to fit. At that place is the rare exception of metric-diameter tires, such every bit the utilize of the 390 size, which in this case would indicate a wheel of 390 mm in diameter. Few tires are made to this size currently. The number may exist longer where a half-inch size is used, for example many heavy send trucks at present use 22.5-inch tires.[12] [thirteen]
  • ii- or 3-digit number: Load alphabetize; see tabular array below. Some light-truck tires are canonical for "dual utilize", that is they can exist run in pairs adjacent to each other. If then, separate load indexes will exist specified for single and dual usage. In the example shown in the light-truck tire illustration, the tire has a load index of 114 if used as a unmarried tire, and a load index of 111 if used in a pair.[fourteen] Tires without this designation are unsafe for dual usage.
  • 1- or 2-digit/letter of the alphabet combo: Speed rating; see table below
  • Boosted marks: Run across subheading below.

Light truck (LT) tire codes [edit]

Tire identification diagram, light truck specific features

Some light truck tires follow the Light Truck Numeric or Calorie-free Truck High Flotation systems, indicated by the messages LT at the end instead of the beginning of the sequence, as follows:

  • The tire diameter is given for High Flotation tires and omitted from Numeric tires.
    • 2-digit number: The bore of the tire in inches.
    • x: Separator character.
  • 3- or 4-digit number: The department width (cross-section) of the tire in inches. If the tire diameter is not given, department widths ending in goose egg (east.g., 7.00 or 10.l) betoken the aspect ratio of 92%, while section widths not catastrophe in zero (east.thousand., 7.05 or 10.55) point the attribute ratio of 82%. These attribute ratios oftentimes vary from today's tire manufacturer specification.
  • Structure of the cloth of the tire:
    • B: bias belt
    • D: diagonal
    • R: radial
  • 2-digit number: Bore in inches of the bicycle rim that this tire is designed to fit.
  • LT: Designates that this is a light truck tire.
  • Load alphabetize and speed rating are sometimes not mandatory for flotation sizes, merely must be for any tire approved for street and highway apply.
    • two- or 3-digit number: Load index; see table beneath.
    • 1- or 2-digit/letter combination: Speed rating; see table below.
  • Additional marks: encounter subheading below.

As an example, if a tire size has two sets of numbers (6-12, 5.00-15, 11.2-24), and then the first number (5.00-15) is the estimate width in inches, and the 2d number (v.00-xv) is the rim diameter in inches.

If a tire size has three sets of numbers (15x6.00-half-dozen, 26x12.00-12, 31x15.50-fifteen), and then the starting time number (26x12.00-12) is the judge meridian in inches, the second number (26x12.00-12) is the approximate width in inches, and the third number (26x12.00-12) is the rim bore in inches.[15]

Load range [edit]

The load range letter on lite-truck tires indicates their ply rating.[16]

Load range Ply rating
A two
B four
C 6
D 8
E x
F 12
Chiliad 14
H 16
J 18
Fifty xx
M 22
Due north 24

Load index [edit]

The load index on a rider-car tire is a numerical code stipulating the maximum load (mass, or weight) each tire can carry. For load range "B" tires, ETRTO (ISO-Metric) standards specify the load alphabetize rating at an aggrandizement pressure of 36 psi (250 kPa) (table below), while P-Metric standards measure the load capacity at an inflation pressure level of 35 psi (240 kPa). The ii standards vary slightly with the capacity required for different inflation pressures.[17]

While all ETRTO tires of the same load alphabetize will have the same maximum load, P-metric tires with the same load index may have unlike load capacities depending on the tire size. The TRA Aggrandizement Tables must always exist consulted when comparing the load capacity of P-Metric tires; the load index solitary is non sufficient. An case: a P205/50R15 standard load tire has a load index of 84 and a load rating of 505 kg (ane,113 lb) at 35 psi (240 kPa). A P215/50R13 with the aforementioned load index of 84 only has a load rating of 495 kg (1,091 lb), as well at 35 psi (240 kPa).[xviii]

ETRTO produces a Standards Manual (current edition 2010), which contains a number of specifications and tables. The load alphabetize table (2010 page G7) lists the load index from 0–45 kg (0–99 lb) to 279–136,000 kg (615–299,829 lb) (although it appears to relate to an inflation pressure of 42 psi (290 kPa) it doesn't specify, but see load inflation table).[10] The load inflation table references the load index to inflation pressures betwixt 22 psi (150 kPa) and 42 psi (290 kPa) at i psi (half-dozen.9 kPa) intervals which is as well big to be included here.[18]

Standard load table (excerpt from ETRTO standards transmission – 2010 page G7
ref 42 psi (290 kPa))[x]
Code Weight Lawmaking Weight Code Weight Lawmaking Weight
threescore 250 kg (550 lb) lxxx 450 kg (990 lb) 100 800 kg (i,800 lb) 120 i,400 kg (3,100 lb)
61 257 kg (567 lb) 81 462 kg (1,019 lb) 101 825 kg (1,819 lb) 121 ane,450 kg (iii,200 lb)
62 265 kg (584 lb) 82 475 kg (1,047 lb) 102 850 kg (one,870 lb) 122 1,500 kg (3,300 lb)
63 272 kg (600 lb) 83 487 kg (1,074 lb) 103 875 kg (ane,929 lb) 123 1,550 kg (3,420 lb)
64 280 kg (620 lb) 84 500 kg (1,100 lb) 104 900 kg (two,000 lb) 124 1,600 kg (iii,500 lb)
65 290 kg (640 lb) 85 515 kg (1,135 lb) 105 925 kg (ii,039 lb) 125 1,650 kg (3,640 lb)
66 300 kg (660 lb) 86 530 kg (i,170 lb) 106 950 kg (2,090 lb) 126 ane,700 kg (3,700 lb)
67 307 kg (677 lb) 87 545 kg (1,202 lb) 107 975 kg (ii,150 lb) 127 1,750 kg (3,860 lb)
68 315 kg (694 lb) 88 560 kg (1,230 lb) 108 1,000 kg (ii,200 lb) 128 1,800 kg (4,000 lb)
69 325 kg (717 lb) 89 580 kg (1,280 lb) 109 1,030 kg (2,270 lb) 129 one,850 kg (4,080 lb)
70 335 kg (739 lb) 90 600 kg (1,300 lb) 110 i,060 kg (ii,340 lb) 130 1,900 kg (4,200 lb)
71 345 kg (761 lb) 91 615 kg (one,356 lb) 111 one,090 kg (2,400 lb) 131 1,950 kg (4,300 lb)
72 355 kg (783 lb) 92 630 kg (i,390 lb) 112 1,120 kg (2,470 lb) 132 2,000 kg (4,400 lb)
73 365 kg (805 lb) 93 650 kg (ane,430 lb) 113 one,150 kg (2,540 lb) 133 two,065 kg (four,553 lb)
74 375 kg (827 lb) 94 670 kg (ane,480 lb) 114 1,180 kg (two,600 lb) 134 2,125 kg (4,685 lb)
75 387 kg (853 lb) 95 690 kg (ane,520 lb) 115 1,215 kg (2,679 lb) 135 two,185 kg (4,817 lb)
76 400 kg (880 lb) 96 710 kg (one,570 lb) 116 i,250 kg (2,760 lb) 136 ii,245 kg (4,949 lb)
77 412 kg (908 lb) 97 730 kg (1,610 lb) 117 1,285 kg (ii,833 lb) 137 two,305 kg (five,082 lb)
78 425 kg (937 lb) 98 750 kg (1,650 lb) 118 1,320 kg (two,910 lb) 138 2,365 kg (v,214 lb)
79 437 kg (963 lb) 99 775 kg (1,709 lb) 119 1,360 kg (3,000 lb) 139 2,435 kg (5,368 lb)

Some of the older alphabetic character-lawmaking load-range ratings for Light Truck Tires can be establish in a chart[xix] published by the Goodyear Tire & Rubber Visitor. For example:

Tire size Weight (lb) @lb/in2 Weight (lb) @lb/in2
LR Code D East
LT215/85R16 2335 @65 2680 @lxxx
LT225/75R16 2335 @65 2680 @80
LT235/85R16 2623 @65 3042 @80
LT245/75R16 2623 @65 3042 @80

Speed rating [edit]

The speed symbol is made up of a single letter or an A with one numeral. Information technology indicates the maximum speed at which the tire can carry a load respective to its load index.[10] The testing method consists of pressing the tire confronting a big diameter metal drum to reflect its advisable load, and run at ever increasing speeds in 10 km/h (6.2 mph) steps in 10 minute increments until the tire's required speed has been met.[10]

Speed rating[10]
Lawmaking km/h mph Lawmaking km/h mph
A1 5 3 L 120 75
A2 10 half-dozen Chiliad 130 81
A3 fifteen 9 North 140 87
A4 20 12 P 150 94
A5 25 xvi Q 160 100
A6 30 19 R 170 106
A7 35 22 S 180 112
A8 40 25 T 190 118
B fifty 31 U 200 124
C 60 37 H 210 130
D 65 40 5 240 149
E 70 43 Z over 240 over 149
F 80 50 W 270 168
G 90 56 (W) over 270 over 168
J 100 62 Y 300 186
K 110 68 (Y) over 300 over 186

Prior to 1991, tire speed ratings were shown within the tire size, before the "R" structure type. The available codes were SR (180 km/h, 112 mph), HR (210 km/h, 130 mph), VR (in excess of 210 km/h, 130 mph).

Tires with a speed rating college than 300 km/h (186 mph) are indicated by a Y in parentheses. The load rating is often included within the parentheses, due east.m. (86Y).

In many countries, the police requires that tires must exist specified, and fitted, to exceed the maximum speed of the vehicle they are mounted on, with regards to their speed rating lawmaking (except for "temporary-employ" spare tires). In some parts of the European union, tires that are not fit for a motorcar's or motorcycle's detail maximum speed are illegal to mount. The sole exception are M+Due south tires, where a warning sticker stating the allowed maximum speed must be placed within clear sight of the driver inside the vehicle. Some manufacturers will install a speed governor if a vehicle is ordered with tires rated beneath the vehicle's maximum speed. In some parts of the Eu, e.k. Frg, it is allowed to mount tires with a lower speed rating lawmaking if the car manufacturer specifies tires with a very high speed rating in the registration documents and the vehicle volition non reach this speed based on insufficient power.[xx] In this case it is possible to calculate the appropriate speed rating with a formula.[21]

Tires with a college speed rating generally take a better grip but a lower tread life, reduced functioning in cold conditions and reduced driving comfort.[22] [23] [24]

Wear rating [edit]

The treadwear is a iii digit comparative rating. Information technology is office of Uniform Tire Quality Grading standard.

Metric to USC tire conversion chart [edit]

R15

215/75/xv 27.7"10 eight.5"

225/70/15 27.four"x 8.9"

225/75/15 28.3"ten 8.9"

235/75/xv 29.0"ten 9.three"

245/75/15 29.5"x ix.6"

255/75/15 30.0"10 10.0"

265/75/15 30.6"10 10.4"

R16

205/85/16 29.7"x 8.1"

215/75/16 28.7"10 viii.5"

225/70/16 28.4"x 8.9"

225/75/xvi 29.2"x eight.ix"

235/70/xvi 29.0"x ix.iii"

235/85/16 31.7"x 9.3"

245/70/16 29.5"10 9.half-dozen"

245/75/16 thirty.5"x 9.6"

Wheel/rim widths [edit]

To determine the allowable range of rim widths for a specific tire size, the TRA Yearbook or the manufacturer'south guide should always be consulted for that specific tire – in that location is no dominion of thumb.[25] Running a tire on a rim size or type non approved by its manufacturer tin can outcome in tire failure and a loss of vehicle control.

Boosted marks [edit]

In that location are numerous other markings on a typical tire, these may include:

  • "*": BMW-Mini original manufacturer fitment
  • 030908: Blessing number of the tire
  • "100T": Commonly appears later on tire size. Meaning: standard load inflation tabular array (100) & speed rating (T)
  • AMx: Aston Martin OE Fitments[26]
  • "AO": Audi original manufacturer fitment
  • Arrows: Some tread designs are "directional", and designed to perform better when driven in a specific direction. Such tires will have an arrow showing which way the tire should rotate when the vehicle is moving forrad.
  • B: Bias belted; tires for motorcycles (Instance: 150/seventy B 17 69 H) – diagonal structure with belt added under the tread
  • BSB: Cleaved serrated band
  • BSL: Blackness serrated letters
  • BSW: Black sidewall
  • C: Commercial; tires for lite trucks (Instance: 185 R14 C)
  • DOT code: All tires for use in the Us take the DOT code, as required past the Department of Transportation (DOT). It specifies the company, factory, mold, batch, and date of product (two digits for week of the year plus two digits for year; or two digits for week of the year plus one digit for twelvemonth for tires fabricated prior to 2000). Although not constabulary, some tire manufacturers do not

    Tire manufactured in 10th week of 2001

    suggest using a "new" tire that has been sitting on the shelf for more than six years (Ford Motor Company) or 10 years (Cooper Tire citing a tire association recommendation).[27] JATMA, the Japanese Automotive Tyre Manufacturers Association recommends that all tires be inspected at five years, and all tires that were manufactured more ten years previous exist replaced.[28]
  • E4: Tire approved co-ordinate to the ECE-regulations, the number indicating the state of approval.
  • "ELT": Pirelli Elect tyres, specific for electrical car
  • "J": Jaguar original manufacturer fitment
  • LL: Light load; tires for light usage and loads
  • "G/C": Only for motorcycle fitment
  • M+South, or M&Due south: Mud and snowfall; A tire that meets the Rubber Manufacturers Clan (RMA) and Prophylactic Clan of Canada (RAC) all-season tire definition.[26] These are commonly found on all-season tires, with self-cleaning tread and average traction in muddy or very snowy conditions, and for low temperatures. Fasten tires accept an additional letter, "E" (Chiliad+SE).
  • A/T or AT: All Terrain; Designed for all conditions on and off road, master of none
  • G+T or M&T: Mud and terrain; Designed to perform in mud or on other terrain that requires additional traction such as on rocks, in deeper snow, and in loose gravel.
  • M/T or MT: Mud Terrain; Designed for deep mud and stone crawl
  • Made in ...: Country of product
  • MO: Original tires for Mercedes-Benz
  • MOE: Mercedes-Benz Original Extended mobility (sometimes incorrectly[29] referred to as a Run-flat_tire)[26]
  • Mountain snowflake pictograph: Winter rider and light truck tires that meet the severe snow service requirements of Safe Manufacturers Association (RMA) and Rubber Association of Canada (RAC).[26]
  • N-x: Original tires for Porsche where "x" is a "0" for the first approved in that size, "1" the second, ...[26]
  • "NHS": Non highway service
  • ORWL: Outlined raised white lettering
  • OWL: Outlined white lettering
  • RF: Reinforced – for Euro-metric tires, the term 'reinforced' ways the same thing equally 'extra load'[26]
  • RFT: Run-flat tire; Tires designed for vehicles without spare tires. Reinforced sidewalls allow the tire to exist driven "flat" for a distance specified past the manufacturer (usually 50 miles)
  • RSC (inside a circle): BMW runflat system component[26]
  • RWL: Raised white lettering

    Examples of different tire sidewall markings

  • SFI, or Inner: side facing inward; within of disproportionate tires
  • SFO, or Outer: side facing outward; outside of asymmetric tires
  • SL: Standard load; tire for normal usage and loads
  • Star: Original tires for BMW
  • TL: Tubeless
  • TPC: General Motors OE fitments[26]
  • TT: Tube-blazon, tire must be used with an inner-tube
  • TWI: Tread wear indicator – a device, such as a triangle or a minor Michelin Man icon, located where the tread meets the sidewall, and indicating the location of the raised wear bars in the tire tread channels – TWI is also used to refer to the raised wearable bars themselves.
  • VSB: Vertical serrated ring
  • WSW: White sidewall
  • Xl: extra load; a tire that allows a higher inflation pressure than a standard load tire, which increases the tire's maximum load
  • ZP: zilch-pressure; Michelin'southward branding for their run-flat models.
  • To facilitate proper balancing, most tire manufacturers also mark carmine circles (uniformity) and/or yellow dots (weight) on the sidewalls of their tires to enable the best possible lucifer-mounting of the tire/wheel associates.[30]

Tire geometry [edit]

When referring to the purely geometrical data, a shortened form of the full annotation is used. To accept a common example, 195/55R16 would mean that the nominal width of the tire is approximately 195 mm at the widest point, the height of the side-wall of the tire is 55% of the width (107 mm in this example) and that the tire fits 16-inch-diameter (410 mm) wheels. The code gives a direct calculation of the theoretical bore of the tire. For a size shown as "T/A_W" use (2×T×A/100) + (W×25.4) for a result in millimeters or (T*A/1270)+ Due west for a consequence in inches. Take the common case used above; (2×195×55/100)+(16×25.four) = 621 mm or (195×55/1270)+xvi = 24.44 inches.

Less usually used in the US and Europe (just often in Japan for example) is a note that indicates the full tire diameter instead of the aspect ratio of the side-wall elevation. To take the same example, a 16-inch bike would have a diameter of 406 mm. Adding twice the tire height (2×107 mm) makes a total 620 mm tire diameter. Hence, a 195/55R16 tire might alternatively be labelled 195/620R16.

Whilst this is theoretically ambiguous, in practice these two notations may easily be distinguished because the height of the side-wall of an automotive tire is typically much less than the width. Hence when the height is expressed as a per centum of the width, it is almost always less than 100% (and certainly less than 200%). Conversely, vehicle tire diameters are always larger than 200 mm. Therefore, if the second number is more than 200, then it is almost certain the Japanese annotation is existence used – if it is less than 200 and then the U.S./European annotation is beingness used.

The diameters referred to to a higher place are the theoretical bore of the tire. The bodily diameter of a specific tire size tin just be establish in the TRA Yearbook or the manufacturer's information books.[31] Note that the tire's cantankerous-section and diameter are always specified when measured on a bike of a specified width; different widths will yield unlike tire dimensions.

Examples [edit]

The tires on a BMW Mini Cooper might be labeled: P195/55R16 85H

  • P – these tires are for a rider vehicle. Nonetheless 'P' denotes P metric size load and speed rating changes for P tire & non-P tires
  • 195 – the nominal width of the tire is approximately 195 mm at the widest signal
  • 55 – indicates that the height of the sidewall of the tire is 55% of the width (107 mm)
  • R – this is a radial tire
  • 16 – this tire fits xvi in (410 mm) wheels
  • 85 – the load alphabetize, a maximum of 515 kg (1,135 lb) per tire in this instance
  • H – the speed alphabetize, this ways the maximum permitted speed, hither 210 km/h (130 mph)

The tires on a Hummer H1 might exist labeled: 37X12.5R17LT

  • 37 – the tire is 37 in (940 mm) in bore
  • 12.5 – the tire has a cross section of 12.5 in (320 mm)
  • R – this is a radial tire
  • 17 – this tire fits 17 in (430 mm) wheels
  • LT – this is a light truck tire

Historical tire codes [edit]

Due north America [edit]

Prior to 1964, tires were all made to a 90% aspect ratio. Tire size was specified as the tire width in inches and the diameter in inches – for example, 6.50-15.[32]

From 1965 to the early 1970s, tires were made to an 80% aspect ratio. Tire size was again specified by width in inches and bore in inches. To differentiate from the earlier 90-ratio tires, the decimal point is usually omitted from the width – for case, 685-15 for a tire half dozen.85 inches wide.

Starting in 1972 tires were specified by load rating, using a letter code. In do, a higher load rating tire was also a wider tire. In this arrangement a tire had a letter, optionally followed past "R" for radial tires, followed by the aspect ratio, a dash and the diameter – C78-xv or CR78-xv for bias and radial, respectively. Each diameter of wheel had a carve up sequence of load ratings; thus, a C78-14 and a C78-15 are not the same width. An aspect ratio of 78% was typical for letter of the alphabet-sized tires, although lxx% was besides common and lower profiles down to fifty% were occasionally seen.[33]

See also [edit]

  • Bicycle tire
  • Motorbike tyre
  • Plus sizing
  • Speedometer errors induced by variations in tire size.
  • Tire manufacturing
  • Uniform Tire Quality Grading (UTQG)
  • Wheel sizing

References [edit]

  1. ^ "49 CFR 574.5 - Tire identification requirements.".
  2. ^ "Dept. of Transportation issues new DOT codes".
  3. ^ "Goodyear Tire Call back - Goodyear Tires". www.goodyear.com.
  4. ^ About us, European Tyre and Rim Technical Organisation. Retrieved 2010-01-05.
  5. ^ Scope of the Clan and Some of its History Archived 2010-03-03 at the Wayback Machine, The Tire and Rim Clan. Retrieved 2010-01-04.
  6. ^ Laboratory Test Procedure for FMVSS 120 Archived 2009-07-02 at the Wayback Auto, National Highway Traffic and Condom Administration, United States Section of Transportation, April x, 2000. Retrieved 2010-01-05.
  7. ^ Motor Vehicle Tire Safety Regulations SOR 95-148, Canadian Legal Information Establish. Retrieved 2010-01-05.
  8. ^ Jazar, Reza N. (November 19, 2013). Vehicle Dynamics: Theory and Awarding. Springer Science & Concern Media. ISBN9781461485445.
  9. ^ "ISO - 83.160.10 - Road vehicle tyres". www.iso.org . Retrieved May 20, 2021.
  10. ^ a b c d e f Malinverni, Pier Giovanni. "More than 50 years of standardisation" (PDF). The European Tyre and Rim Technical Organisation. {{cite web}}: CS1 maint: url-status (link)
  11. ^ Care and Maintenance - Technical Archived 2010-01-15 at the Wayback Machine, Dunlop Tires. Retrieved 2010-01-05.
  12. ^ A brief history of radial tires and the offbeat TRX organization, Michelin TRX, Dr. Theo Netherlands. Retrieved 2010-01-05.
  13. ^ Similarly, whilst most bicycle wheels have a diameter measured in inches, the 700mm wheel (=27.56") is increasingly mutual.
  14. ^ "Archived copy". Archived from the original on October 6, 2014. Retrieved September xxx, 2014. {{cite web}}: CS1 maint: archived copy as title (link)
  15. ^ "FAQ's". Retrieved June 27, 2013.
  16. ^ "2010 Year Book",The Tire and Rim Clan, Inc.,Preface p XVII
  17. ^ Guidelines for the Application on Load and Inflation Tables Archived 2010-03-31 at the Wayback Motorcar, Toyo Tires. Retrieved 2010-01-05.
  18. ^ a b Guidelines for the Awarding on Load and Aggrandizement Tables Archived 2010-03-31 at the Wayback Machine, Toyo Tires. Retrieved 2010-01-05.
  19. ^ ""Goodyear Truck Tires Service Manual", Section xi, Retreading, p107" (PDF). Archived from the original (PDF) on May 20, 2013.
  20. ^ "Council Directive 92/23/EEC of 31 March 1992 relating to tyres for motor vehicles and their trailers and to their fitting". THE COUNCIL OF THE EUROPEAN COMMUNITIES. Retrieved December six, 2014.
  21. ^ "How to summate speed ratings". Auto Motor Öl. Retrieved December six, 2014.
  22. ^ "Tyre speed ratings". world wide web.uniroyal-tyres.com . Retrieved Nov 16, 2021.
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  24. ^ "Sidewall Markings / Nokian Tires". Nokian Tires . Retrieved Nov sixteen, 2021.
  25. ^ "Bridgestone Product Reference Guide",The Bridgestone Tire & Rubber Co.
  26. ^ a b c d e f 1000 h "Bridgestone Production Reference Guide",The Bridgestone Tire & Rubber Co.,Core Tire Knowledge: Glossary
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  29. ^ "MERCEDES-BENZ ORIGINAL EXTENDED TIRES". Tire Rack.
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  33. ^ "Tire Size Conversion Nautical chart".

External links [edit]

  • Tire Condom, United States Department of Transportation

gilesplis1938.blogspot.com

Source: https://en.wikipedia.org/wiki/Tire_code

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