Pneumatici auto bridgestone estive 235/55 R18 W
235/55 R18 100Y 
A 
B 
68 dB
A
B
68 dB
235/55 R18 100Y
A
B
6 dB
A
B
6 dB
235/55 R18 100Y
B
A 
7 dB
B
A
7 dB
235/55 R18 100W RFT
B
A
70 dB
B
A
70 dB
235/55 R18 100W RFT
B
A
7 dB
B
A
7 dB