IROK-Bias

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
I-801 36x13.5/15LT Yes 66 lb 36.80 14.5 21/32 6 4 BSW 10 - 10 2810 @ 30 524 Bias
I-808 39.5x13.5/15LT Yes 76 lb 39.50 15.6 21/32 6 4 BSW 10 - 10 3475 @ 30 456 Bias
I-813 42x14/15LT Yes 95 lb 41.50 15.5 24/32 6 4 BSW 10 - 10 3000 @ 25 407 Bias
I-824 37x14/15LT Yes 68 lb 36.50 14.71 21/32 6 4 BSW 11 - 11 3085 @ 30 531 Bias

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
I-802 36x13.5/16LT Yes 65 lb 36.80 14.2 21/32 8 4 BSW 10 - 10 3460 @ 45 524 Bias
I-809 39.5x13.5/16LT Yes 85 lb 39.50 15 21/32 8 6 BSW 12 - 12 3640 @ 45 456 Bias
I-814 42x14/16LT Yes 95 lb 41.50 15.4 24/32 6 4 BSW 10 - 10 2950 @ 25 407 Bias
I-825 37x14/16LT Yes 70 lb 36.80 14.2 21/32 8 4 BSW 11 - 11 3300 @ 45 524 Bias

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
I-803 36x13.5/16.5LT Yes 67 lb 36.80 14.3 21/32 8 4 BSW 9.75 - 9.75 3410 @ 45 524 Bias
I-810 39.5x13.5/16.5LT Yes 85 lb 39.50 15 21/32 8 6 BSW 9.75 - 9.75 3640 @ 45 456 Bias
I-815 42x14/16.5LT Yes 98 lb 41.50 15.2 24/32 6 4 BSW 10.5 - 10.5 2950 @ 25 407 Bias
I-823 21/49-16.5LT Yes 159 lb 49.00 20.8 28/32 6 4 BSW 14 - 14 3640 @ 25 220 Bias
I-826 37x14/16.5LT Yes 69 lb 36.40 14.25 21/32 8 4 BSW 11 - 11 3300 @ 45 536 Bias

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
I-804 36x13.5/17LT Yes 66 lb 36.80 13.8 21/32 8 4 BSW 10 - 10 3360 @ 45 524 Bias
I-811 39.5x13.5/17LT Yes 84 lb 39.50 14.5 21/32 8 6 BSW 10 - 10 3640 @ 45 456 Bias
I-816 42x14/17LT Yes 100 lb 41.50 14.8 24/32 6 4 BSW 10 - 10 2900 @ 25 407 Bias
I-821 21/49-17LT Yes 167 lb 49.00 20.8 28/32 6 4 BSW 14 - 14 3640 @ 25 220 Bias
I-827 37x14/17LT Yes 68 lb 36.80 13.77 21/32 8 4 BSW 11 - 11 3250 @ 45 524 Bias

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
IF-806 36x13.50-19.5 Yes 92 lb 36.10 13.65 20/32 16 8 BSW 10.5 - 10.5 6400 @ 110 589 Bias

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
I-805 36x13.5/20LT Yes 68 lb 36.80 12.8 21/32 8 4 BSW 10 - 10 2575 @ 45 524 Bias
I-812 39.5x13.5/20LT Yes 74 lb 39.50 14.5 21/32 8 4 BSW 10 - 10 3600 @ 45 456 Bias
I-822 21/49-20LT Yes 168 lb 49.00 18.8 28/32 6 4 BSW 14 - 14 3640 @ 25 220 Bias

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.