Pneumatici auto bridgestone estive 315/40 R21 V
315/40 R21 111Y 
B 
A 
7 dB
B
A
7 dB
315/40 R21 111Y
B
A
72 dB
B
A
72 dB
315/40 R21 115V XL
B
B 
71 dB
B
B
71 dB
315/40 R21 115V XL
B
B
71 dB
B
B
71 dB
