Pneumatici auto yokohama estive 255/40 R21 Y
255/40 R21 102Y XL 
D 
A 
73 dB
D
A
73 dB
255/40 R21 102Y XL
C
A
71 dB
C
A
71 dB
255/40 R21 102Y XL
A
A 
70 dB
A
A
70 dB
255/40 R21 102Y XL
B
A
71 dB
B
A
71 dB