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1964 Triumph Spitfire Tires Guide

For 1962-1964 Triumph Spitfires
  - with 3.5-inch wide rims

by Vaughn Aubuchon


Here is a summary guide of the auto tires available for the earliest Triumph Spitfire sports cars. These tires were found by Internet search.

I created this page, because of my 55-year old 1964 Triumph Spitfire? They no longer make the original 145 SR13. Hence, I have created a guide to available tires.
.

-

Sidewall Markings

Load Index/ Speed Rating

DOT Date Code

UTQG Rating
     - Treadwear, Traction, Temperature
.


Disclaimer
.




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     1964 Triumph Spitfire Car Tires
       - 13 inch Rim Diameter, 3.5" Width

Brand
Model
Wid.
mm
Aspect
Ratio
Load/ Speed
UTQG
 .
Price per Tire
Ama-zon
.
Wal-mart

.
              
155/80 SR-13

Original

145SR13
145
80

-

Achilles

122
155
80
79T

440-A-A

$ 32

$ 32

Coker WW

700400
155
80
??S

420-B-B

$ 98

Cooper

Trend - SE

155
80
79 S

400-A-B

$ 71

Hankook

Zovac

155
80

Kumho

Solus TA11

155
80
79T

700-A-B

$ 50

$ 45

Master.

A/S IV

155
80
79S

$ 52

MilestarWW

MS775

155
80
79S

480-A-B

$ 40

$ 48

Nankang

CX668

155
80
79T

$ 40

$ 36

Nokian

Nordman

155
80

$ 68

Remington

LX

155
80

Toyo

Extensa A/S

155
80
79S

620-A-B

$ 56

$ 58

Travelstar

UN106

155
80
79T

480-A-B

$ 38

$ 31

Uniroyal

AWP II

155
80
79S

$ 56

Westlake

RP18

155
80
79T

500-A-A

$ 37

$ 36

-  Notes -

   1
. This is my attempt to show availability.


   2.
Prices are subject to change.

   3. Some tires may have to be specially ordered.
.

80 - 450

80

40

50

40

60

50

50



Wheel Width vs. Tire Width

1962 - 1966
Triumph Spitfire Specs


Maximum Width of Tire for each Wheel Width
-
.

Aspect Ratio

80
78
70
60
Minumun Rim Size
145

-

-

-

3.5
4

4.5

5

155
A
165

cheat

4

4.5

5
5.5
165
B
175

4.5

5
5.5
175
C
185
195

5
5.5
185

195
205

5.5

205
215

350

100




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   Load Index/ Speed Rating
      
       Passenger Car Tires
     Example # = 155/80 SR13 79T
     The "79T" = L.I./ S.R.

.
Load Index

Speed Rating

Rating
Weight
Lbs
.
Rating
Speed
MPH
73
805
M
81
74
827
N
87
75
853
-
-
76
880
P
94
77
908
Q
100
78
937
R
106
79
963
S
112
80
990
T
118

.
Notes -

1. Only certain Load Ratings are shown, for brevity.
.

60

70

60

60

60

60




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     DOT Date Code
       
Applies to all tires -
           - made for North America
           - made after year 2000

DOT Date Code on Auto Tire Sidewall

DOT  J3J9   (1001)

Code

.
  Factory, Date of Manufacture

-

J3J9

  Company, factory, mold, batch
  (for North America))

10

  First 2 digits = Month of manuf.
  October for this code (10th month)

01

  Second 2 digits= Year of manuf.
  2001 for this code

Notes:

DOT= Department of Transportation
For code = DOT J3J9 1001
.

50

230

50




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    UTQG Rating
      
        Uniform Tire Quality Grading Rating

UTQG Rating on Auto Tire Sidewall
Treadwear 240 - Traction A - Temperature A

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         1. Tread Wear Rating

Grades

  Relative Tread Wear

Example
Relative
Milage

-

740

  7.4 times as good

148 K
600

  6 times as good

120 K
500

  5 times as good

100 K
400

  4 times as good

80 K
300

  Thice as good

60 K
200

  Twice as good

40 K
100

  Standard Wear (example)

20 K
90

  90 % of standard

18 K
80

  80 % of standard

16 K
70

  70 % of standard

14 K
60

  60 % of standard

12 K
50

  70 % of standard

10 K

Notes:

Number of MILES that tires will last.
These are relative ratings, assigned by, and used to compare tires, from a single manufacturer.
The "Standard Wear" for each manufacturer is DIFFERENT, which is why comparisons vary between different makers.
.

60

70

60

60



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         2. Traction Rating

Grades

.
  Relative Traction

-

AA

  Best traction

A

  Excellent traction

B

  Good traction

C

  Poor traction

Notes:

Important for BRAKING.
These are relative ratings, assigned by, and used to compare tires, from a single manufacturer.
.

-

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         3. Temperature Rating

Grades

.
  Heat Dissipation

-

A

  Greater than 115 MPH

B

  100 - 115 MPH

C

    85 - 100 MPH

Notes:

Tire cooling ability at SPEED.
These are relative ratings, assigned by, and used to compare tires, from a single manufacturer.
.

60

200

60

60





Disclaimer:
I hope there are no errors.
Although the author has taken care to assure accuracy, errors can and do occur. Prices change. Models change. Everything changes.
Thank you for your time.

-

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Have A Great Day!
Vaughn Aubuchon Author Bio

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This Vaughns Triumph Spitfire Car Tires Summary Guide
List was last updated on 2019-09-09.