FT491™ Tire

EPA SmartWay® verified and CARB-compliant fuel efficiency without sacrificing removal miles means that the Firestone FT491™ helps deliver a lower cost per mile. With features such as the patented Defense Groove™ and ULTI-Rib™ designs to combat the initiation and spread of irregular wear, the FT491 is suitable for all-position use, but is designed especially for single- and tandem-axle trailer and dolly applications in long- and regional-haul service. The wide footprint spreads load over a larger area, distributing footprint pressure to promote long, smooth wear. The wide design takes a full-size drive cap, which helps extend the life of your casing.

Specifications

Selection

Choose Size (Ply/Star Rating)

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Standard

Metric

Details

Application
Article Number: 4228
Tire Size: 295/75R22.5
Compound
Ply/Star Rating: 14
Tread Depth (32nds) (mm): 11 8.6
Load Range: G
Overall Width (in) (mm): 11.5 292
Overall Diameter (in) (mm): 39.5 1003
Max. Tire Load Dual (lbs) (kg): 5675 2575
Max. Speed (mph) (km/h): 75 121
Meas. Rim (in) (mm): 8.25 210
Overall Width Loaded (in) (mm): 12.6 320
Static Loaded Radius (in) (mm): 18.5 470
Max. Tire Load Single (lbs) (kg): 6175 2800
Inflation Pressure (psi) (kPa): 110 760
Revolutions Per (mile) (km): 525 326

Application
Article Number: 4229
Tire Size: 285/75R24.5
Compound
Ply/Star Rating: 14
Tread Depth (32nds) (mm): 11 8.6
Load Range: G
Overall Width (in) (mm): 11.3 287
Overall Diameter (in) (mm): 40.8 1036
Max. Tire Load Dual (lbs) (kg): 5675 2575
Max. Speed (mph) (km/h): 75 121
Meas. Rim (in) (mm): 8.25 210
Overall Width Loaded (in) (mm): 12.4 315
Static Loaded Radius (in) (mm): 19.2 488
Max. Tire Load Single (lbs) (kg): 6175 2800
Inflation Pressure (psi) (kPa): 110 760
Revolutions Per (mile) (km): 509 316

Application
Article Number: 4230
Tire Size: 11R22.5
Compound
Ply/Star Rating: 14
Tread Depth (32nds) (mm): 11 8.6
Load Range: G
Overall Width (in) (mm): 11.3 287
Overall Diameter (in) (mm): 40.6 1031
Max. Tire Load Dual (lbs) (kg): 5840 2650
Max. Speed (mph) (km/h): 75 121
Meas. Rim (in) (mm): 8.25 210
Overall Width Loaded (in) (mm): 12.5 318
Static Loaded Radius (in) (mm): 18.9 480
Max. Tire Load Single (lbs) (kg): 6175 2800
Inflation Pressure (psi) (kPa): 105 720
Revolutions Per (mile) (km): 512 318

Application
Article Number: 4231
Tire Size: 11R24.5
Compound
Ply/Star Rating: 14
Tread Depth (32nds) (mm): 11 8.6
Load Range: G
Overall Width (in) (mm): 11.4 290
Overall Diameter (in) (mm): 42.8 1087
Max. Tire Load Dual (lbs) (kg): 6005 2725
Max. Speed (mph) (km/h): 75 121
Meas. Rim (in) (mm): 8.25 210
Overall Width Loaded (in) (mm): 12.5 318
Static Loaded Radius (in) (mm): 20 508
Max. Tire Load Single (lbs) (kg): 6610 3000
Inflation Pressure (psi) (kPa): 105 720
Revolutions Per (mile) (km): 486 302

Application
Article Number: 4232
Tire Size: 255/70R22.5
Compound
Ply/Star Rating: 16
Tread Depth (32nds) (mm): 11 8.8
Load Range: H
Overall Width (in) (mm): 10.4 264
Overall Diameter (in) (mm): 36.1 917
Max. Tire Load Dual (lbs) (kg): 5070 2300
Max. Speed (mph) (km/h): 75 121
Meas. Rim (in) (mm): 8.25 210
Overall Width Loaded (in) (mm): 11.5 292
Static Loaded Radius (in) (mm): 16.9 429
Max. Tire Load Single (lbs) (kg): 5510 2500
Inflation Pressure (psi) (kPa): 120 830
Revolutions Per (mile) (km): 575 357

Specialized Features

FEATURES & BENEFITS

: Ulti-Rib™ design combats the initiation and spread of irregular wear
: Stress relief sipes fight irregular wear on main ribs by absorbing rib edge stresses in the footprint
: Flow-through design allows for water evacuation to enhance road grip
: Thirsty cross-rib sipes improve traction by slicing through water for a solid grip on wet roads

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