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Tires For The 21st Century
Firestone OTR Tire Index
Performance Finder | Tire Classifications | Grader Road Loping | Technical Specifications
Firestone OTR Tires  Grader Tire Classifications(G2-G4)

Function: Transporting / Haulage

G-2 Traction VKT, VSW SGG RB, FG
G-3 Rock VKT RG RB, RL
G-4 Rock Deep
SRG DT RB

 

Characteristics:


Traction/Self-Cleaning Tread

Lateral Stability 

 

Tread Classifications

G2/G3 Regular Tread
100%
G4 Deep Tread
150%

 

Tire Size Designation


Regular (SH/SW=0.95) 27.00 Section Width (inches)
R Radial Structure 49 Rim Diameter (inches)
** Star Rating

Wide Base (SH/SW=0.8) 33.25 Section Width (inches)
R Radial Structure 35 Rim Diameter (inches)
** Star Rating

Super Wide Base (SH/SW=0.65) 40/65 Section Width (inches)
R Aspect Ratio 65 Series
39 Rim Diameter (inches)
30PR Ply Rating

 

Sidewall Markings (Off-The-Road Tires)

1. Brand Name

2. Bridgestone's Specification Code

3. Pattern Name

4. Serial Number

5. Size

6. Star Rating, Tubeless or Tubetype