Load Index
The load index is a number on the tyre that shows the maximum weight each tyre can carry.
What is Load Index?
For example, 91 means 615 kg per tyre. The value is read from a standard table. Reinforced (XL) tyres have a higher load index for the same size. The required minimum load index for your car is listed in the vehicle documents. Trailers and roof loads do not change this, but heavy loads make correct pressure more important.
How it works
The tyre must carry at least the load the manufacturer specifies for the axle.
Why it matters for your car
Tyres with a too low load index can overheat and fail. Light commercial vehicles often need C or reinforced tyres with higher load capacity.
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