The maximum tyre width for a car or car derivative must not be more than 1.3 times the vehicle manufacturer’s widest optional tyre.
However, for an off-road passenger vehicle fitted with front and rear beam axles, the maximum tyre width must not be more than 1.5 times the vehicle manufacturer’s widest optional tyre.
The nominal width of the narrowest tyre fitted to a vehicle must not be less than 70 per cent of the nominal width of the largest tyre fitted and never less than the vehicle manufacturer’s narrowest optional tyre as indicated on the manufacturer’s tyre placard.
Learn something everyday...
235 width makes it easily (205x1.3=266) or do we have beam axles?? (205x1.5=307!) hrrrm overkill!