Tyre sizes for ATVs are normally measured in this way, in this example we will use tyre size 25/8x12.
The first measurement 25" is the overall diameter. The second measurement 8" is the width of the tyre. The third measurement 12" is the rim diameter.
If you are trying to fit larger tyres on a four wheel drive ATV, always change front and rear tyres at the same time to avoid any differential/final drive damage.
If you need any further advice, or do not see the tyre you need, just give us a quick call on 01280 817350 or email and we will be only too pleased to help.