The Interco IROK is the direct result of many years of research and development by the Offroad Tires tire gurus at Interco Tire.\u00a0 Interco IROKs feature scooped lugs, blade and molded siping, special side-wall features, extra tough cord and cut resistant compounds, and have a distinctive, directional tread pattern that incorporates the legendary Interco patented Three Stage Lug (TSL) design. \n\nIROKs delivers traction thats as good as it can get in snow, mud, and on the rocks.\u00a0\n\nInterco IROKs are D.O.T. approved tires and come in both bias ply and radial versions. IROKs offer, an on road ride that is extremely smooth, and deliver lower than expected road noise for a tire this aggressive. IROKs are both stylish and function. IROKs are available in close to 50 combined various size combinations, including four (4) non-D.O.T. approved, Offroad Tires and competition use only Sticky sizes.\n\n\nDetails:\n\n\n - Tire Size 49x21\/16.5LT \n\n - Tread Width 16.5 \n\n - Tread Depth 28\/32 \n\n - Tread Ply 6 \n\n - Side Wall Ply 4 \n\n - Side Wall lettering BSW \n\n - Minimum Suggested Rim Width 14 \n\n - Maximum Suggested Rim Width 14\n\n - O.D. 49 \n\n - Revs\/Mile 220 \n\n - Max PSI 25 \n\n - Max Load 3640 \n\n - DOT Approved Yes \n\n - Aspect Ratio 49 \n\n - C.S. 20.8 \n\n - Tire Type Bias \n\n - Section Width 21 \n\n - Rim Diameter 16.5