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HOW TO READ A TYRE (300-4)
DIMENSION
EXPLAINATION
300-4
Tyre width 300 / Rim Diameter 4"
10x3
Former designation in inches:
Tyre Width 3" / Tyre diameter 10" ( =3" x 2 + 4")
260x85
Designation in millimetres: 
Tyre diameter 260mm / Tyre width 85mm
The former designation in inches converted to mm: 
10" x 25.4 = approx. 260mm
3" x 25.4 = approx. 85mm
85/100-4
This is how the designation would be, had it been a passenger car 
tyre. Tyre width 85mm / Profile 100% / Rim diameter 4".
10x3.00-4
American designation, mainly used for low profile and turf tyres:  
Tyre Diameter 10" / Tyre Width 3" / Rim diameter 4"
CONVERSION TYRE DIMENSION
 
180x45
7x1¾
 
200x35
8x1¼
 
200x50
8x2
 
220x50
8½x2
2.50-3
210x65
8x2.5
3.00-4
260x85
10x3
4.00-4
300x100
12x4
4.00-5
330x100
 
2.00-6
 
10x2
3.50-6
 
13x3
4.00-6
 
14x4
2.25-8
 
12.5x2.25
 
 
12½x2¼
4.00-8
400x100
16x4
5.00-8
 
18x5
6.00-9
 
21x6
16x650-8
170/60-8
 
16.5x6.5-8
165/65-8
 
18x8.50-8
210/60-8
 
18.5x8.5-8
215/60-8
 
18x8.00-10
195/50-10
 
20.5x8.00-10
205/65-10
 
24x8.00-14.5
200/60-14.5
 
Tyre Designations
Common tyre conversions  
for small  tyres used in the 
following sectors:
•	 Handtrucks and internal  
transport 
•	 Mobility and wheelchairs  
•	 Tyres for ride on Mowers  
•	 Tyres for Hay equipment  
260mm
85mm
APPENDIX 
| 
TRAILER PARTS & SPARES 
| 
AG HUBS & PARTS 
| 
TUBES 
| 
TYRES 
| 
WHEELS & RIMS 
| 
TIPPING EQUIPMENT 
| 
TRAILER COMPONENTS 
| 
SUSPENSION & AXLES 
| 
TRAILER & BRAKE KITS

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