They are made using the original Firestone dirt track tire molds of years past, but have been redesigned using modern technology and materials.

4-ply nylon construction (not a radial)
Can be run tubeless
DOT Approved
Item Details
Diameter: 24.85″
Cross Section: 5.60″
Tread Width: 4.10″
Recommended Rim Width: 4″ – 5″

Coker Tire 613099 Firestone Grooved Rear Tire, 8.20-15
Tread Width: 6.75″
Section Width: 9.18″
Overall Diameter: 30.92″
Max Load Capacity: 1415 @ 32 PSI
Recommended Rim Width: 6.00″ – 8.50″
Included in this Kit:

(2) Coker Tire 55665 Firestone Ribbed Front Tire, 5.00-15

(2) Coker Tire 613099 Firestone Grooved Rear Tire, 8.20-15