Firestone Commercial Truck and Bus Tyres
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![Firestone tyres]( "Firestone tires")
Section width (mm): 215 -295
Section width (in): 9 -12
Aspect ratio (%): 70 -75
Rim diameter (in): 17.5 - 24.5
Speed Rating: J,L
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![Firestone tyres]( "Firestone tires")
Section width (mm): 225 -295
Section width (in): 11
Aspect ratio (%): 70 -75
Rim diameter (in): 19.5 - 24.5
Speed Rating: L 
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![Firestone tyres]( "Firestone tires")
Section width (mm): 285 -295
Section width (in): 10 -12
Aspect ratio (%): 75
Rim diameter (in): 22.5 - 24.5
Speed Rating: ,L -
![Firestone tyres]( "Firestone tires")
Section width (mm): 255 -295
Section width (in): 11
Aspect ratio (%): 70 -75
Rim diameter (in): 22.5 - 24.5
Speed Rating: L 
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![Firestone tyres]( "Firestone tires")
Section width (mm): 315
Aspect ratio (%): 80
Rim diameter (in): 22.5
Speed Rating: L -
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![Firestone tyres]( "Firestone tires")
Section width (mm): 275
Aspect ratio (%): 80
Rim diameter (in): 22.5
Speed Rating: L -
![Firestone tyres]( "Firestone tires")
Section width (mm): 385 -445
Aspect ratio (%): 65
Rim diameter (in): 22.5
Speed Rating: K 
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![Firestone tyres]( "Firestone tires")
Section width (mm): 255 -295
Section width (in): 11
Aspect ratio (%): 70 -75
Rim diameter (in): 22.5 - 24.5
Speed Rating: L -
![Firestone tyres]( "Firestone tires")
Section width (mm): 285 -295
Section width (in): 11
Aspect ratio (%): 75
Rim diameter (in): 22.5 - 24.5
Speed Rating: L 
