Fitment Guide

Here you can find your correct tyre size. Just click on either the image or titles below, find your ATV in the list and pick your tyre size! Then select the size in our handy search box below and it will bring up all the tyre patterns available in that size. Please note that the following information is intended as a guide and Terrain Tyres accepts no responsibility for the accuracy of this content as manufacturers can change sizes without notice. We always recommend that you check the sizes on your machine before purchasing. We can not be held responsible for tyres sizes ordered incorrectly.

Our Tyre load index and speed index charts can be found below:

Tyre Load Index Chart

     

What is a Tyre Load Index?
 

A tyre load index shows what weight a tyre is capable of carrying, when installed to manufacturer recommendations and pressures. Some tyres may have multiple load capacities at different speeds and pressures. Always refer to the manufacturer guidelines when choosing new tyres and ensure that the load and speed index is suitable for you machinery.

 
Below is a table of the most common load index marks found on the sidewall of tyres
 
Load Index KG's Load Index KG's Load Index KG's Load Index KG's Load Index KG's
                   
0 45 35 121 70 335 105 925 140 2500
1 46.2 36 125 71 345 106 950 141 2575
2 47.5 37 128 72 355 107 975 142 2650
3 48.7 38 132 73 365 108 1000 143 2725
4 50 39 136 74 375 109 1030 144 2800
5 51.5 40 140 75 387 110 1060 145 2900
6 53 41 145 76 400 111 1090 146 3000
7 54.5 42 150 77 412 112 1120 147 3075
8 56 43 155 78 425 113 1150 148 3159
9 58 44 160 79 437 114 1180 149 3250
10 60 45 165 80 450 115 1215 150 3350
11 61.5 46 170 81 462 116 1250 151 3450
12 63 47 175 82 475 117 1285 152 3550
13 65 48 180 83 487 118 1320 153 3650
14 67 49 185 84 500 119 1360 154 3750
15 69 50 190 85 515 120 1400 155 3875
16 71 51 195 86 530 121 1450 156 4000
17 73 52 200 87 545 122 1500 157 4125
18 75 53 205 88 560 123 1550 158 4250
19 77.5 54 212 89 580 124 1600 159 4375
20 80 55 218 90 600 125 1650 160 4500
21 82.5 56 224 91 615 126 1700 161 4625
22 85 57 230 92 630 127 1750 162 4750
23 87.5 58 236 93 650 128 1800 163 4857
24 90 59 243 94 670 129 1850 164 5000
25 92.5 60 250 95 690 130 1900 165 5150
26 95 61 257 96 710 131 1950 166 5300
27 97.5 62 265 97 730 132 2000 167 5450
28 100 63 272 98 750 133 2060 168 5600
29 103 64 280 99 775 134 2120 169 5800
30 106 65 290 100 800 135 2180 170 6000
31 109 66 300 101 825 136 2180    
32 112 67 307 102 850 137 2240    
33 115 68 315 103 875 138 2360    
34 118 69 325 104 900 139 2430    

 

Load / Speed Index

A load speed index is usually found on the sidewall of a tyre and is what the manufacturers have tested and rated the maximum loads and speeds that the tyre is capable of. It is very important that you choose the correct load / speed index for your vehicle as per the vehicle manufacturers recommendations. It is usually safe to increase the load / speed index, but again, manufacturer guidelines should be followed.

A load speed index gives the weight and speed a tyre is capable of e.g 116D would indicate that the tyre is capable of carrying 1250kg up to a speed of 40mph. Often in agricultural tyres, the load speed index can alter so that a vehicle travelling at a lower speed may be able to carry more weight. It is always worth checking the tyre manufacturers specifications for further details on this.

Tyre speed rating chart

 

What is a Tyre Speed Rating?

 
A tyre speed rating shows what speed a tyre is capable of achieving, when installed to manufacturer recommendations and pressures. A speed rating is often combined with a load rating to show what weight a tyre will carry up to a certain speed. Always refer to the manufacturer guidelines when choosing new tyres and ensure that the load and speed index is suitable for you machinery.
 
Below is a table of the most common Speed Rating marks found on the sidewall of tyres
 
Speed Mark Max (km/h) Max (mph)   Speed Mark Max (km/h) Max (mph)   Speed Mark Max (km/h) Max (mph)
                     
B 50 31   I 150 94   A1 5 3
C 60 37   Q 160 100   A2 10 6
D 65 40   R 170 106   A3 15 9
E 70 43   S 180 112   A4 20 12
F 80 50   W 190 118   A5 25 16
G 90 56   U 200 124   A6 30 19
J 100 62   H 210 130   A7 35 22
K 110 68   V 240 149   A8 40 25
L 120 75   W 270 168        
M 130 81   Y 300 186        
N 140 87