IROK - Radial

Conquer Any Terrain with the Interco IROK Off-Road Tire

The Interco IROK is a force to be reckoned with off-road, meticulously engineered to dominate challenging environments. Here's why off-road enthusiasts swear by the IROK:

Unmatched Off-Road Performance:

  • Legendary Interco Three-Stage Lug (TSL) Design: Provides exceptional traction in mud, snow, and on rocks.
  • Scooped Lugs, Blade Sipes, and Cut-Resistant Compounds: These features work together to dig deep and deliver superior grip in loose surfaces.
  • Special Sidewall Features: Enhanced protection against punctures and abrasions from rocks and roots.
  • D.O.T. Approved (Most Sizes): Legal for street use, making the IROK a versatile choice.
  • Smooth Ride and Lower Road Noise: Enjoy a surprisingly comfortable ride for an off-road tire, reducing driver fatigue on long journeys.
  • Available in Bias Ply and Radial Constructions: Choose the construction that best suits your needs for durability and performance.
  • Wide Range of Sizes: Nearly 50 size combinations to fit most vehicles, with options for both on and off-road use.
  • Directional Tread: Both Bias Ply and Radial IROK tires are directional tires. Be sure to follow the recommended mounting direction for optimal performance and tread wear.
  • Made in the USA: Interco IROK bias ply and radial tires are both proudly manufactured in the USA.
  • Non-Directional IROK Option: For those seeking a non-directional tread, consider the Interco IROK ND, the IROK's "little brother." The IROK ND is a radial tire, constructed in Thailand. Click here for more information on the Interco IROK ND.

Important Note:

Bias Ply Air Pressure: Bias ply IROK tires require stricter attention to air pressure for safe highway use. Be sure to maintain the recommended air pressure for your specific tire size and load.

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SKU Size D.O.T. Approved Weight O.D. C.S./S.W. TRD Depth PR SWL Ply SWL Min-Max Wheel Width Max Load @ Max PSI Revs/Mile Type
ROK-01R 36x13.5R15LT Yes 81 lb 36.00 13.5 21/32 6 2 BSW 10 - 10 2810 @ 35 598 Radial
ROK-06R 39.5x13.5R15LT Yes 92 lb 39.50 13.75 21/32 6 3 BSW 10 - 10 3475 @ 35 504 Radial
ROK-20R 37x12.50R15LT Yes 80 lb 36.90 13.4 21/32 6 2 BSW 8.5 - 11 2910 @ 35 574 Radial

SKU Size D.O.T. Approved Weight O.D. C.S./S.W. TRD Depth PR SWL Ply SWL Min-Max Wheel Width Max Load @ Max PSI Revs/Mile Type
ROK-02R 36x13.5R16LT Yes 85 lb 36.00 13 21/32 10 3 BSW 10 - 10 3800 @ 65 598 Radial
ROK-07R 39.5x13.5R16LT Yes 96 lb 39.50 13.75 21/32 10 3 BSW 10 - 10 4080 @ 65 504 Radial
ROK-21R 37x12.50R16LT Yes 82 lb 36.90 13.3 21/32 10 3 BSW 8.5 - 11 3640 @ 65 574 Radial
ROK-27R 41x14.5R16LT Yes 101 lb 41.00 14.2 20/32 8 3 BSW 12 - 12 3850 @ 50 464 Radial

SKU Size D.O.T. Approved Weight O.D. C.S./S.W. TRD Depth PR SWL Ply SWL Min-Max Wheel Width Max Load @ Max PSI Revs/Mile Type
ROK-03R 36x13.5R16.5LT Yes 86 lb 36.00 13 21/32 10 3 BSW 9.75 - 9.75 3700 @ 65 598 Radial
ROK-08R 39.5x13.5R16.5LT Yes 97 lb 39.50 13.75 21/32 10 3 BSW 9.75 - 9.75 4080 @ 65 504 Radial
ROK-22R 37x12.50R16.5LT Yes 86 lb 36.90 13.3 21/32 10 3 BSW 8.25 - 8.25 3970 @ 65 574 Radial

SKU Size D.O.T. Approved Weight O.D. C.S./S.W. TRD Depth PR SWL Ply SWL Min-Max Wheel Width Max Load @ Max PSI Revs/Mile Type
ROK-04R 36x13.5R17LT Yes 84 lb 36.00 12.4 21/32 10 3 BSW 10 - 10 3600 @ 65 598 Radial
ROK-09R 39.5x13.5R17LT Yes 99 lb 39.50 13.25 21/32 10 3 BSW 10 - 10 4080 @ 65 504 Radial
ROK-11R 33x13.50R17LT (Ref ROK-30R) Yes 67 lb 33.00 13 21/32 8 2 BSW 10 - 10 2675 @ 50 678 Radial
ROK-14R 35x14.50R17LT (Ref ROK-32R) Yes 81 lb 35.00 14.1 21/32 8 2 BSW 10 - 10 3195 @ 50 625 Radial
ROK-23R 37x12.50R17LT Yes 83 lb 36.90 13.1 21/32 10 3 BSW 8.5 - 11 3640 @ 65 574 Radial
ROK-28R 41x14.5R17LT Yes 100 lb 41.00 14.2 20/32 8 3 BSW 12 - 12 3850 @ 50 464 Radial
ROK-32R 35x14.50R17LT 10PR Yes 82 lb 35.10 14.1 21/32 10 3 BSW 10 - 12 3860 @ 65 625 Radial

SKU Size D.O.T. Approved Weight O.D. C.S./S.W. TRD Depth PR SWL Ply SWL Min-Max Wheel Width Max Load @ Max PSI Revs/Mile Type
ROK-12R 33x13.50R18LT Yes 64 lb 33.00 12.8 21/32 10 3 BSW 10 - 10 2560 @ 50 678 Radial
ROK-15R 35x14.50R18LT (Ref ROK 33R) Yes 80 lb 35.00 12.8 21/32 8 2 BSW 10 - 10 3100 @ 50 625 Radial
ROK-24R 41x14.5R18LT Yes 96 lb 40.80 13.92 19/32 8 2 BSW 10 - 12 3750 @ 50 469 Radial
ROK-33R 35x14.50R18LT 10PR Yes 81 lb 35.10 14.1 21/32 10 3 BSW 10 - 12 3640 @ 65 625 Radial

SKU Size D.O.T. Approved Weight O.D. C.S./S.W. TRD Depth PR SWL Ply SWL Min-Max Wheel Width Max Load @ Max PSI Revs/Mile Type
ROK-05R 36x13.5R20LT Yes 74 lb 36.00 12.5 21/32 10 3 BSW 10 - 10 3200 @ 65 598 Radial
ROK-10R 39.5x13.5R20LT Yes 87 lb 39.50 12.75 21/32 10 3 BSW 10 - 10 4080 @ 65 504 Radial
ROK-13R 33x13.50R20LT (Ref ROK-31R or ROK-29R) Yes 63 lb 33.00 12.4 21/32 8 2 BSW 10 - 10 2510 @ 50 678 Radial
ROK-16R 35x14.50R20LT (Ref ROK-34R Yes 78 lb 35.10 12.8 21/32 8 2 BSW 10 - 10 2825 @ 50 622 Radial
ROK-25R 41x14.5R20LT Yes 100 lb 40.90 14.97 19/32 8 2 BSW 12 - 12 3750 @ 50 492 Radial
ROK-29R 33x13.5R20LT 12PR Yes 68 lb 33.00 12.4 21/32 12 3 BSW 10 - 10 3085 @ 80 678 Radial
ROK-30R 33x13.5R17LT 10PR Yes 74 lb 33.00 12.4 21/32 10 3 BSW 10 - 10 3195 @ 65 678 Radial
ROK-31R 33x13.5R20LT 10PR Yes 66 lb 33.00 12.4 21/32 10 3 BSW 10 - 10 2680 @ 65 678 Radial
ROK-34R 35x14.50R20LT 10PR Yes 80 lb 35.10 14.1 21/32 10 3 BSW 10 - 12 3305 @ 65 622 Radial

SKU Size D.O.T. Approved Weight O.D. C.S./S.W. TRD Depth PR SWL Ply SWL Min-Max Wheel Width Max Load @ Max PSI Revs/Mile Type
ROK-17R 35x14.50R22LT (Ref ROK-35R) Yes 72 lb 35.00 13.3 21/32 8 2 BSW 12 - 12 2500 @ 50 625 Radial
ROK-26R 41x14.5R22LT Yes 95 lb 40.90 13.92 20/32 8 2 BSW 12 - 12 3500 @ 50 467 Radial
ROK-35R 35x14.50R22LT 10PR Yes 5 lb 35.10 14.1 21/32 10 3 BSW 10 - 12 3300 @ 65 625 Radial

Important Tire Specifications Disclaimer - Please Note: While we make every effort to ensure the accuracy of our listed tire specifications, all information provided should be considered approximate. Interco Tire Corporation cannot be held responsible for any discrepancies. Also, please be aware that tread and sidewall patterns may vary by tire size.