The treads of the different versions of rally tyres are described by one or two letters followed by a number. The letters identify the type of tread. The number after the letter indicates the compound. The smaller this number, the harder the compound. In some cases there is a final letter, which indicates the latest development.
For example RA 7 C
RA – tread design
7 – compound level
C – development level

The size of the rims indicated in this manual must be respected. If you have any doubts, please contact Pirelli staff.

Make sure that tyres are fitted by experts with specialised dedicated machinery and equipment, following all appropriate safety procedures. Before assembling/mounting the tyres on rims, clean the surface of the beads and the area of the rim that comes into contact with the tyre. Use ONLY special tyre lubricants for mounting tyres. Do NOT use silicone or petroleum lubricants. Check the state condition of the valves and always use valve caps to prevent air loss. Check the valve seals and the tightness and look for any tears or cracks, replace them if necessary. Follow the indications provided on the sidewall of the tyre referring to the rolling direction and the correct positioning of the internal and external sidewalls, if specified. Use a safety cage when inflating tyres. Before unseating the tyre from the rim during dismounting, make sure that the tyre has been fully deflated, removing the inner valve mechanism.