Best Long Haul Tire Best Long-Haul Tire | Highway 21 For semi truck trailers, Highway D-21 is one of the best long-haul tyres. It is available in the usual size series of 295/75 R22.5. The tyre is made to provide exceptional traction in drive wheel long range applications, extra-long mileage, and fuel efficiency. The base compound and tread of Hubtrac Highway D-21 are well tuned. Its toughness and longevity for maximum retreadability are provided by more enhanced sidewall compounding, which makes it a durable Long Haul Tire in the 295/75 R22.5 size category. Californians can now purchase 295/75 R22.5 Highway D-21 Tire. Customers have the option of purchasing them at maestrotire. online as well. Essential features Of Hubtrac Highway D-21 Hubtrac Highway D-21 is one of the top long-haul tires for drive wheel applications because of a number of crucial characteristics and client advantages, including: • Four zigzag grooves: Offers superior traction performance. • Closed Shoulder Design - The tire's reinforced stability, fuel efficiency, and smooth tread wear are all benefits of this design. • Lateral grooves with heel and toe stoppers help give great traction performance right up until the end of the tire's useful life. • Three Dimensional Sipes - This further improves mileage, traction, and fuel efficiency by reducing irregular wear in the tyre. The 295/75 R22.5 size of the Hubtrac Highway D-21 tyre is now offered. It has a load index of 144/141 and a load range of "G." The tyre has a speed rating of and a 14 Pr Ply rating. "L." The tire has a load capacity of 6175 pounds and an overall diameter of 40.2 inches ( single). Federal excise tax (FET) on Highway D-21 Long Haul Tire is USD 25.28.