Pneumatici auto gt radial estive 255/45 R20
255/45 R20 105W XL 
B 
A 
70 dB
B
A
70 dB
255/45 R20 105H XL
A
A
69 dB
A
A
69 dB
255/45 R20 105H XL
A
A
69 dB
A
A
69 dB
255/45 R20 105W
B
A
B
A
255/45 R20 105H
A
A
A
A
255/45 R20 105H
A
A
A
A
255/45 R20 105W XL
B
A
70 dB
B
A
70 dB
255/45 R20 101W RFT
C
B 
72 dB
C
B
72 dB