4. Wheels and Tyres
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Tyre manufacturers' recommendation
• Change tyres after six years, regardless of profile depth.
• Avoid striking curbs, potholes or other obstacles.
Age of tyres
You should change your tyres before they reach six years old because
the rubber deteriorates over time and also when they don't move for
long periods of time. You should not drive at 60 MPH with tyres that
are over 6 years old. The four digit DOT code on the side of tyre (if
necessary, check the inner wall) shows the date of manufacture. The
first two digits refer to the manufacturing week, the last two digits to
the manufacturing year.
Example:
DOT 0421
means week 4 in the year of manufacture (here: 2021)
4.5 Rims
Only use rims that are covered by the vehicle licence. Should you
wish to use other rims, please note the following:
Rules for the use of other rims
- Size,
- the pitch Circle Diameter (PCD) and the wheel offset.
- compression depth and
- the load/bearing capacity must be sufficient for the permissible
total mass.
- The wheel bolts must be the correct type for the wheel rims
fitted.
Modifications can only be made with the
manufacturer's permission.
DOT number
Rules for wheel screws
Wheel bolts for all 13" + 14" metal wheel rims and all light
alloy rims (incl. 15"):
cone washer
Wheel bolts for all 15" metal wheel rims:
spherical wheel
bolt.
When changing rims (steel -> aluminium / aluminium
-> steel) ensure that you are using the correct wheel
bolts. Steel wheels and Alloy wheel use different types
of bolts, which are NOT inter changeable.
