Does Inner RIM matter in fitting a snow chain

Question

I need to buy two snow chains for my car with the size of 225 45R 19 (Nissan Qashghai 2016),

I have found a snow chain that fits:

225/45-18

225/50-17

225/55-16

So, will this snow chains fit the wheel of Nissan Qashghai, or I shall keep looking for a chain which fits the exact numbers (i.e. 225 45R 19).

Base on this figure and my understanding, it seems the last set of numbers (inner rim) does not seem import, but would like to know the opinion of some experts (thanks)

Solar Mike · Accepted Answer

The 16 or 17 or 18 is the diameter of the wheel.

As the tire has both inner and outer diameters the same, then for the tire to fit the inner diameter of the wheel has to be the same as the outer diameter. So not sure why your source says inner diameter.

See this for an explanation: https://en.m.wikipedia.org/wiki/Tire_code

Note that if you use a snow chain with too small a diameter, then it can foul the brakes or steering components on the inside of the wheel with serious consequences.

Alex · Answer

Nissan Qashqai owner's manual suggest you should use the following tire sizes:

It would be best to use these sizes while searching for the right size of your chains. However it is also possible to use tyre calculator (like this one) to compare your tire with ones advertised with a chain. Sizes you've listed are  smaller diameter tires than your original one, so chain would be too small.

Jeff Jensen · Answer

There is not enough side wall on the 19 inch I rarely use chain as I have 4 wheel drive and live in So Calif. But chains wrap around and would damage an extreamly low profile tire perhaps you might want to rent a car or take your friends car up to the mountains if that's the reason you need chains. I think the cables will wrap and damage your rims as well.

Answered by Jeff Jensen on June 16, 2021

Does Inner RIM matter in fitting a snow chain

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