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The load index capacity of a tyre dictates how much weight it can support.
It is critical that you consult your vehicle's owner's manual to determine the appropriate capacity for your vehicle. If you choose the wrong tyres, your insurance may be voided in some situations.
Where Can I See My Load Rating?
The load rating of your tyre will be found on the sidewall, just to the right of the diameter.
A tyre with a load index of 80, for instance, can support 450kg of weight.
When purchasing a new tyre, load ratings and speed ratings should be compared. Check the advice from the experts at your local Kwik Fit centre.
Find out the maximum load capability for your tyres:
Load Rating
Max Load
65
290kg
66
300kg
67
307kg
68
315kg
69
325kg
70
335kg
71
345kg
72
355kg
73
365kg
74
375kg
75
387kg
76
400kg
77
412kg
78
425kg
79
437kg
80
450kg
81
462kg
82
475kg
83
487kg
84
500kg
85
515kg
86
530kg
87
545kg
88
560kg
89
580kg
90
600kg
91
615kg
92
630kg
93
650kg
94
670kg
95
690kg
96
710kg
97
730kg
98
750kg
99
775kg
100
800kg
101
825kg
102
850kg
103
875kg
104
900kg
105
925kg
106
950kg
107
975kg
108
1000kg
Why is Load Rating Important?
How much weight your tyres can safely support at maximum air pressure is determined by their load rating. If load rating is disregarded, it may lead to tyre failure, resulting in damage to your car or, in the case of an accident, injury to you and your passengers.
A tyre's casing and structure can be strained by being overloaded, leading to failure or a blowout. The edges of the tread might overheat from abnormal bending under large loads and start to separate from the tyre. In warmer locations where the roadways absorb heat, the sidewall cords might also start to unravel. Even after the heavy load has been lifted, the cords are likely to continue to deteriorate once they start to unravel.
How do I choose a tyre load index?
It is important to consider the weight of your vehicle as well as the maximum weight that your tyres can support when selecting a tyre load index. The tyre load index chart can help you determine how many pounds each tyre can support. Multiply by four (since your car will have four tyres). Those tyres should function as long as that number is more than your vehicle's GVWR (Gross Vehicle Weight Rating).
Need some advice?
Contact your local Kwik Fit centre for a tonne of valuable advice if you're not sure if your car's tyres have the proper speed rating or if you have any other inquiries regarding car tyres. To make sure everything is in perfect working order, you can even schedule a free tyre inspection!
Your tyre size can be found on the sidewall of your current tyre and is a sequence of numbers and letters. The most common tyre size in the UK is 205/55R16 but there are many variations so it’s important to check your existing tyre first before searching for tyres.
Tip: Take a photo of your existing tyre sidewall to make it easier to identify your tyre size using the guide below.
The first three digits. This displays the width of the tyre in millimetres. A tyre marked 225 will measure 225mm across the tread from sidewall to sidewall.
Aspect Ratio
The fourth and fifth digits of the tyre code that immediately follow the tyre width. The aspect ratio or profile height of the tyre sidewall is expressed as a percentage of the tyre width. So an aspect ratio of 55 for example means that the profile height of the tyre is 55% of its width.
Rim Diameter
The next two digits represent the size of the wheel rim that the tyre can be fitted to. It is also the diameter of the tyre from bead to bead. So a tyre marked 16 will fit on a 16-inch wheel rim.
Speed Rating
The speed rating of a tyre is represented by a letter of the alphabet at the end of the tyre size code and indicates the maximum speed capability of the tyre. Tyres receive a speed rating based on a series of tests which measure the tyres capability to handle a set speed for a prolonged period of time.
Select your tyre speed rating to find out the maximum speed your tyres can maintain.
If you are unsure what speed rating you need, be sure to check your vehicle handbook. Choosing a lower speed rating than that recommended by your vehicle manufacturer could potentially invalidate your insurance.
Load Rating
The load index provides information on the maximum weight capability for the tyre. The load index is a numerical code that can be located just after the tyre size marking and before the speed rating.
Select your load index to find out the maximum load capability for your tyres.
Although not illegal, it is not advisable to have tyres with a lower speed rating or load index than the manufacturer recommended tyre specification for your vehicle, or to have a combination of different tyre construction types. Consult your vehicle handbook to confirm your vehicle’s tyre speed rating and load index as well as any additional requirements.
0800 75 76 77 You can reach our customer care team 6 days a week from 9:00am to 6:00pm on Monday and Thursday, 8:30am to 6:00pm Tuesday, Wednesday and Friday, 8:30am to 5:00pm Saturday, and 10:00am to 4:00pm on Bank Holidays.
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Select Tyre Size
Front Tyre Size
Rear Tyre Size
We endeavour to ensure we are displaying the correct tyres for your vehicle. However, we recommend all customers check the tyre size printed on the side wall of their tyres before proceeding with a tyre purchase as occasionally discrepancies do occur. By selecting the tyre sizes above and clicking 'Continue', you are indicating that you have checked your tyre sizes.
Please select your front and rear tyre size before clicking 'Continue'.
We have identified the tyre size(s) that may fit your {VEHICLE}. Please select your front tyre size and rear tyre size below before clicking 'Continue'.
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Please note: There is a slope that the vehicle must be driven up to reach the vehicle ramp at this centre. This may prevent us from being able to work on some high-performance vehicles, Tesla vehicles or vehicles that have been lowered. If your vehicle has low ground clearance, please contact the centre team on 01342 314 111 before booking.
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This is the only appointment time available on this day. To continue with your booking, please select "Reserve Your Appointment" below.
Please note:
If you selected an appointment on a Bank Holiday Monday, please bring your car to the centre at 10:00am rather than the time shown below.
Centres open usual time on Good Friday.
