TIRES THAT YOU CAN TRUST

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How Often Do I Need To Replace My Big Rig Tires?

Barring the unfortunate nail and other tire piercing objects or your personal decision to neglect the required tire maintenance, normal tread wear is calculated to be 1/32nd of an inch “per every 13,000 miles traveled”.

Knowing this wear factor and the Federal Motor Carrier Requirements below, you can roughly estimate when to expect to replace the tires on your tractor and trailer.

For the front steering wheels of your big rig tractor, Paragraph “b” of the Federal Motor Carrier Safety Regulation Title 49 Part 393.75 states that “Any tire on the front wheels of a bus truck, or truck tractor shall have a tread groove pattern depth of at least 4/32 of an inch when measured at any point on a major tread groove. The measurements shall not be made where tie bars, humps or fillets are located.”

Paragraph “c” of the Federal Motor Carrier Safety Regulation Title 49 Part 393.75 states that “Except as provided in paragraph (b) of this section, tires shall have a tread groove pattern depth of at least 2/32 of an inch when measured in a major tread groove. The measurement shall not be made where tie bars, humps or fillets are located.”

Can retreaded, re-grooved or recapped tires be placed on front wheels or steering axles of big rig tractors?

Paragraph “d” of the Federal Motor Carrier Safety Regulation Title 49 Part 393.75 states that “No bus shall be operated with regrooved, recapped or retreaded tires on the front wheels.”

Paragraph “e” of the Federal Motor Carrier Safety Regulation Title 49 Part 393.75 states that “No truck or truck tractor shall be operated with re-grooved tires on the front wheels which have a load carrying capacity equal to or greater than that of 8.25 x 20, 8 ply-rating tires.”

While the use of recapped or retreaded tires on the front of your big rig is apparently not prohibited based on the Federal Motor Carrier Safety Regulation Title 49 Part 393.75 requirements, however we will always recommend installing new tires on the steering axles.

Sometimes saving money has to take a back seat especially when it comes to getting you back home safely to your family.

Tire Maintenance Tips:

We also encourage you to perform the following tire maintenance tips to extend the life of your truck tires and to help save on fuel cost.

  • If you reduce the tire air pressure based on load/inflation charts for your brand of tire when running empty to reduce irregular tire wear, do not forget to increase the tire pressure when you are running loaded. Forgetting to properly re-inflate the tires can be a very expensive mistake. 
  • Visually inspect your truck’s tires prior to operation with your inspection including tire tread area and sidewall areas. 
  • Look for tires under inflated, items sticking out of the tires and use your hand to feel for any uneven wear signs across each tire 
  • Verify from the tire manufacturer or supplier the proper air  pressure for the tire design required for each season and when hauling a heavy load 
  • Visually inspect for damaged rims, cracked studs and missing bolts 
  • Promptly have a tire showing signs of damage removed 
  • Do not run different tire designs on your truck. Running a radial tire with a bias-ply tire can shorten the life of the tires as well as damaging the internal components of the truck. 

Should You Buy Retreaded or New Big Rig Tires?

Except for where the Federal Motor Carrier Safety Regulations state otherwise, the choice is entirely up to the owner operator or a trucking purchasing manager.

According to the EPA waste conservation guide lines “In most situations, retread tires can be driven under the same conditions and at the same speeds as new tires with no loss in safety or comfort. In fact, retread tires have been safely used on school buses, trucks, cars, fire engines, and other emergency vehicles for years. Retreading tires also helps conserve a valuable nonrenewable resource-oil. Every year, retreading saves more than 400 million gallons of oil in North America. Retread tires also help divert thousands of scrap tires from disposal each year.”

It takes 7 gallons of oil to retread a truck tire compared to 22 gallons to manufacture a new one which results in retreaded tires typically costing 50 to 70 percent less than new tires.

The better brands of retreaded tires are known to be offered with warranties because the dependability and service output has increased to where the retreading companies proudly stand behind their products.

With proper tire maintenance followed and you watching the tire wear to allow you to use the casings 2 to 3 more times, retreading the tires could mean getting 750,000 miles of service from your tires while allowing you to recapture 75% to 80% of your initial new tire investment.

Eventually you will need to purchase new tires again unless you become a convert to purchasing retreaded tires when possible.

There are many owner operators and trucking companies out there that will only purchase new truck tires only because of past problems with retreaded tires.

Crossing the desert or coming down a mountain road is not the best time to see part of your retreaded tire on the windshield of the car where the driver is blowing the horn and giving you the peace sign at the same time.

Better quality minded tire retreading companies using new tire retreading processes will have to work hard to change their minds.

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