Designed for all winter conditions, on roads partly dry and partly icy or covered in snow

“Road” studs can be fitted, which protrude about 1/1.5 mm, which can therefore also cover long asphalted stretches without damaging the road surface.
The compounds and the tread have been developed to perform best both in the case of the application of studs for heavy snow conditions, and also - without studs - to guarantee adequate grip also on slippery surfaces and at very low temperatures.

SOTTOZERO™
TECHNICAL ADVICES

TYRE IDENTIFICATION MARKING
TRANSAM/StockCar

TYRE IDENTIFICATION

The markings that appears on the side of the tyres also tells us the basic size of the tyre, the rim diameter and the width of the rim.
We will illustrate how to read two different types of branding that may appear on the side of the rally tyres.

C: Nominal section width expressed in mm - 225
D: Nominal external diameter expressed in mm - 600
d: Nominal rim diameter of the rim, expressed in inches - 16
C: Nominal section width expressed in mm - 205
h/C: Tyre’s technical series. This expresses the ration between the section height (in mm) and the nominal section width (in mm) - 65
Radial construction - R
d: Nominal rim diameter of the rim, expressed in inches - 15

MARKING

The treads of the various 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 type of use, for example: RX 7

TA        
Size Type Section
Width
Aspect
Ratio
Rim
Diameter
Rim
Width
320/660-18 HARD 320 660 18 13
350/720-18 HARD 350 720 18 14


 
TA2        
Size Type Section
Width
Aspect
Ratio
Rim
Diameter
Rim
Width
275/695-15 HARD 275 695 15 10


 
StockCar        
Size Type Section
Width
Aspect
Ratio
Rim
Diameter
Rim
Width
305/660-18 HARD 305 660 18 11
Pirelli SOTTOZERO™ motorsport tyre

SOTTOZERO™
TECHNICAL DATA

tyre size version diameter(mm)D section width(mm)C tread wdt(mm)Cb rolling circumference(mm) rimE
tyre size235/40ZR18 versionSottozero 'SNOW' RALLY WRC diameter(mm)D649 section width(mm)C222 tread wdt(mm)Cb175 rolling circumference(mm)1976 rim
E
8Jx18
SAFETY WARNING: danger may result from improper use. Follow tyre manufacturer’s instructions. Refer to car manufacturer’s recommendations with respect to tyre fitment for each model.

PIRELLI OFFICIAL MOTORSPORT DEALERS