Pneumatici auto firestone estive 255/50 R20 Y
255/50 R20 109Y XL 
B 
A 
7 dB
B
A
7 dB
255/50 R20 109Y XL
C
A
71 dB
C
A
71 dB
255/50 R20 109Y XL
C
A
71 dB
C
A
71 dB
DOT 2021
255/50 R20 109Y XL
C
A
71 dB
C
A
71 dB