South Hants Vehicle Preservation Society

Member of the Federation of British Historic Vehicle Clubs

Twinned with Retro Auto Club Normand, France

For further information e-mail SHVPS registrar @ shvps@dickbarton waitrose.com or phone 02392 587179

or click ‘Join Now’

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LOAD AND PRESSURE DATA FOR DIAGONAL (CROSS PLY)
TYRES FITTED TO TRAILER CARAVANS


Tyre Size
Max. Load & Rec. Pressure for Speeds up to 100 km/h (62 mph)
Max. Load & Rec. Pressure for Speeds above 100 km/h (62 mph)
Axle Load kg
Inflation psi
Axle Load kg
Inflation psi
5.20-10 4pr
13
14
5.50-12 4pr
5.50-13 4pr
14
15
5.90-13 4pr
14
14 6pr
15 4pr
6.40-13 4pr
13 6pr
15 4pr
15 6pr
6.70-13 4pr
15 6pr
7.00-14 4pr
14 6pr
616
737
825
693
851
906
935
935
990
1045
1016
1045
1133
1166
1276
1133
1353
1199
1320
33
33
33
33
33
33
33
33
33
39
33
33
39
33
39
33
39
33
39
560
670
750
630
774
824
850
850
900
950
924
950
1030
1160
1160
1030
1230
1090
1200
30
30
30
30
30
30
30
30
30
36
30
30
36
30
36
30
36
30
36

Towing: It is recommended that the rear tyres of the towing vehicle be increased 4 psi to improve towing vehicle stability and to compensate for drawbar load transfer.  If the tyre pressures have already been increased to compensate for the additional load on the towing vehicle this recommendation should be ignored.

Reprinted from Caravan April 1981

LOAD AND PRESSURE DATA FOR DIAGONAL LOW PROFILE
RADIAL TYRES FITTED TO TRAILER CARAVANS


Tyre Size
Max. Load & Rec. Pressure for Speeds up to 100 km/h (62 mph)
Max. Load & Rec. Pressure for Speeds above 100 km/h (62 mph)
Axle Load kg
Inflation psi
Axle Load kg
Inflation psi
145/70-R12
165/70-R10
13
175/70-R12
13
15
185/70-R13
14
15
195/70-R13
14
205/70-R14
15
(ER70-15)
235/70-R15
(HR70-15)
638
715
880
935
990
1100
1100
1166
1232
1232
1276
1430
1430

1815
36
36
36
38
38
38
38
38
38
38
38
38
38

38
580
650
800
850
900
1000
1000
1060
1120
1120
1160
1300
1300

1650
33
33
33
34
34
34
34
34
34
34
34
34
34

34

Towing: It is recommended that the rear tyres of the towing vehicle be increased 4 psi to improve towing vehicle stability and to compensate for drawbar load transfer.  If the tyre pressures have already been increased to compensate for the additional load on the towing vehicle this recommendation should be ignored.

Reprinted from Caravan April 1981

Tyre pressures for Trailer Caravans (Cross Ply)

Page

P17 - Tech 2
P18 - Tech 3
Page 18b - Tech 5
P19 - Tech 6
P16 - Tech 1

Tyre pressures for Trailer Caravans (Low Profile Radial)