Tyre Load Index: What is it and Why is it Important?

Posted on: Mar 8, 2024 | 3 mins | Written by: HDFC ERGO Team

Tyre Load Index: What is it and Why is it Important?

When it comes to car maintenance, you should have an idea about various aspects of the car that need proper care and routine inspection. It is important to know certain terminologies related to car parts so that you can understand the ways to take care of a car. A special car insurance policy known as mechanical breakdown insurance helps you cover car repairs.

Tyre Load Index: Meaning and Significance

The tyre load index is a code that indicates the maximum weight a tyre can safely carry when inflated to the recommended air pressure. Tyre manufacturers use this standardised system to ensure drivers select tyres appropriate for their cars based on the vehicle weight and the load it carries.

Knowing the tyre load index becomes imperative to avoid exceeding the maximum load capacity. Overloading can:

- cause accidents

- overheat the tyre

- lead to faster tyre wear and tear

- cause premature tyre failure, which could result in loss of control of the vehicle

- increase fuel consumption due to additional weight

- strain the car frame and chassis

- make the steering wheel less responsive

- damage the car’s suspension and make the ride rough

- increase the possibility of tyre blowouts, which could be risky

- damage the transmission and drivetrain of the vehicle

Also, exceeding the tyre load index can make the brakes less effective and cause the vehicle to struggle on slopes while accelerating.

How to Find Vehicle Tyre Load Index?

Typically, manufacturers mention the tyre load index on the tyre sidewall as a two or three-digit number. This number corresponds to a particular weight capacity (in kilograms (kg) or pounds (lb)) specified in the tyre load index chart. For instance, a tyre load index of 101 implies the maximum weight capacity is 825kg or 1819lb. The tyre load index is usually followed by the letter W and mentioned after the tyre size code, with an oblique (/) between them. For instance, in the tyre code, 225/55R17 101W, 101 indicates the tyre load index.

Tyre load index chart

You need a tyre load index chart to match your vehicle's load needs to the right tyres. These charts show the number load index and the highest weight a tyre can hold when inflated to the right level. Here is a shorter version:

Index	Max Load (kg)	Index	Max Load (kg)
80	450	90	600
85	515	95	690
88	560	100	800
91	615	105	925

How does the tyre load index affect tyre performance?

The tyre load index is integral to how well the tyres work generally. Tyres that can handle more weight help the vehicle stay stable, stop more quickly, and turn more easily. Using the right load index makes it less likely that the tyre will bend or wear out too quickly.

On the other hand, tyres with a lower number than needed might not be able to handle extra weight. These things could cause problems with how well they work, wear unevenly, and make it harder to grip the road. This match between tyre strength and vehicle load is crucial for ensuring that your car acts correctly to driving inputs and has a smooth ride.

What happens if you exceed the tyre load index?

Going over the tyre load index can cause a chain of problems, including:

1. More likely to blow out

2. Less effective braking

3. Not as stable or easy to control

4. Accelerated tyre wear

5. Possible damage to the car's engine and springs

These problems may lead to crashes and severe damage to the car's parts. These risks can be reduced, and a safer trip can be ensured with regular checks, proper tyre selection, and the right third party car insurance.

Conclusion

Make sure you thoroughly read through your vehicle owner’s manual or the placard in the driver door jamb to know the tyre load index. Additionally, it’s necessary to have financial safety in the form of a car insurance policy. While third party car insurance is mandatory, comprehensive insurance (Link title : Comprehensive Car Insurance starting at Rs 2094 | Buy/Renew @Best Price Online) is better for protection against third-party liabilities and damages to your vehicle.

Frequently Asked Questions (FAQs)

1. The tyre load index tells us what?

When filled to the recommended pressure, it outlines the highest weight a tyre can support without risk.

2. How can I be sure that my car's tyre load index is appropriate?

When choosing new tyres, you should always check the owner's instructions for your car and talk to a professional.

3. Can the correct tyre load index increase safety?

Your vehicle's weight should be matched to the appropriate tyre load index to improve stopping and grip.

4. Does tyre maintenance change my insurance?

Of course. Following the manufacturer's tyre advice can help with car insurance and third party car insurance claims in the event of an accident.

Disclaimer: The above information is for illustrative purpose only. For more details, please refer to policy wordings and prospectus before concluding the sales.

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