Tyre Load Rating
Load Rating Guide

Your Tyre Load Rating Explained

Buying new tyres with the wrong load rating is dangerous. Too much weight might damage your tyres and cause an accident.

This guide hopes to explain what tyre load ratings are and why it is essential to buy a tyre with the correct rating.

What is your Tyre Load Rating measuring?

Tyre load rating - also known as tyre load index - is the maximum load or weight a moving tyre can carry, when properly inflated, at the fastest speed allowed.

A numerical value represents the load ratings. The higher the tyre's load index number, the greater its load-carrying capacity. For example, A load index of 65 is equal to 265 kilograms - that is the maximum load-bearing capacity of that tyre and so on.

 

Tyre Load Index Reminders:

  •  The tyre load index is just for ONE TYRE, not all four attached to the vehicle.  

  •  Don't drive tyres with different load ratings.
     All four tyres on your vehicle should have the same load index to prevent uneven tread wear and blowouts.

 

How is Tyre Load Index determined?

Tyre load ratings are set by the tyre manufacturers themselves since they design and produce the tyre. They take the following into consideration when setting the load index:

    1. Vehicle's weight

    2. Weight of maximum number of passengers

    3. Weight of its cargo / what it can carry

    4. The additional weight of the force gets added when the car is in motion.

When they have determined the rating, the tyre engineers will run tests to see if they gave the tyre the correct load rating or not.

 

TYROOLA SHOPPER'S TIP

What Load Rating should I search for? 
If your current tyres are your vehicle's original tyres, check the load index on its sidewall and the tyre placard. If they are replacement tyres, check your vehicle's manual and tyre placard.

 

Where can I find my Tyre's Load Index?

1. Tyre Code

You can find the tyre load rating on the sidewall of your tyre as part of the tyre code. It is located after the diameter measurement and before the tyre's speed rating.

load index

2. Tyre Placard

The load index can also be found on your vehicle's tyre placard. The placard for your tyres could be in your glove box, driver's door, or inside the fuel cap. It identifies the number and location of seating positions and the total load capacity for occupants and luggage.

Car Jack

3. Owner's manual

Your vehicle's manual will also have the tyre load index information. You can also get in touch with the car company themselves or check online - but make sure the information is valid.

 

How tyre pressure affects your Tyre Load Rating

Your tyre's load rating is only accurate when the tyre is correctly inflated, with the prescribed amount of tyre pressure.

Regularly check your tyre's air pressure to ensure a safe trip, with the right amount of weight in the car.

 

What happens if I use tyres with the wrong load rating?

Lower rating

It is EXTREMELY DANGEROUS to use a tyre with a load index lower than what your car's manufacturer prescribed.

  1. Tyres will wear out faster, wasting money and requiring you to replace them earlier.
  2. Too much load causes tyre blowouts which can be fatal not just for you but anyone else out on the road with you.
  3. Your tyres - and vehicle - will lose driving stability and your ride will no longer be comfortable.
  4. In case of an accident, your insurance company may refuse to cover your vehicle if it uses tyres not recommended by the car manufacturer.
  5. Driving around using tyres with the wrong Load Rating is illegal and punishable by law.

 

Higher rating

It is possible to use a tyre with a higher load rating than recommended by your vehicle's manufacturer. But are there any advantages to it?

  1. A tyre with a higher load rating will provide enhanced cornering capabilities and increased stability and control, especially at higher speeds.
  2. However, since it is still not the correct load rating, it won't be as comfortable to ride in the vehicle.
  3. There will be a higher rolling resistance, causing the car to consume more fuel as it fights the friction.
  4. Tyres with higher load ratings are usually more expensive as well.

 

Tyre Load Rating Chart Australia

Code Weight Code Weight Code Weight Code Weight
80 450 kg 90 600 kg 100 800 kg 110 1060 kg
81 462 kg 91 615 kg 101 825 kg 111 1090 kg
82 475 kg 92 630 kg 102 850 kg 112 1120 kg
83 487 kg 93 650 kg 103 875 kg 113 1150 kg
84 500 kg 94 670 kg 104 900 kg 114 1180 kg
85 515 kg 95 690 kg 105 925 kg 115 1215 kg
86 530 kg 96 710 kg 106 950 kg    
87 545 kg 97 730 kg 107 975 kg    
88 560 kg 98 750 kg 108 1000 kg    
89 580 kg 99 775 kg 109 1030 kg    

 

 

Need help?

Still have questions about your tyre load and speed rating, reach out via our contact page or social media accounts and members of #TeamTyroola will assist you.

Tyroola has a wide selection of tyres with all load index measurements available to match your car needs.

You can start shopping for the perfect set of tyres here.

If you’re not sure which tyres are right for you, Tyroola got your back. We have the perfect tyre for your needs. Buy now!