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TBR TIRES

TECHNOLOGY & SAFETY PETLAS ADVANTAGE
TBR

TIRE BALANCE

Everyday driving can affect the balance of your tires. If you notice vibrations or shimmy while driving at a certain speed, it’s possible that your tire has lost its balance.

To have your tires balanced and your vehicle properly aligned are of crucial importance for both optimum vehicle performance and the tires’ longevity.

REMAINING TREAD DEPTH

When the tread depth reaches 2/32˝, tread wear indicators (TWI) or “wear bars” will be more visible. There is a triangular shaped indicator on the sidewall to show the location of the tread wear indicators (TWI), or "wear bars," which look like narrow strips of smooth rubber across the grooves.

If these bars are visible, it means that your tire is worn out and should be regrooved, retreaded or replaced.

SIDEWALL INDENTATION

Sidewall indentation is just a visual condition that has no negative effect on the tire’s performance. This cosmetic condition occurs during radial construction of the tire and is more noticeable in larger/wider tire sizes. Higher inflation pressures also can make them visible. 

Despite the fact that it is totally harmless, you may still want to advise an expert or official dealer to have the indentation checked.

MOUNTING AND DISMOUNTING INSTRUCTIONS

DISMOUNTING

  • Remove tire and wheel assembly from the vehicle.
  • Never try to unseat the beads of an inflated tire.
  • Remove the valve and leave the tire deflating.
  • Make sure the tire is completely deflated before you start mounting.
  • Use tools that will not cause any damage to the rim or the beads.

MOUNTING

  • Make sure that the rim and the tire are compatible with manufacturer instructions.
  • The rim must be clean and undamaged. Never mount a tire to a cracked, smashed, deformed or repaired/welded rim. Any material which may harm the tire such as oil, dust or dirt must be cleaned from the rim.
  • Look carefully inside and outside of the tire to check for possible damages. Before assembling the tire, lubricate tire beads and wheel/rim seat with a vegetable oil-based lubricant. Never use silicones or petroleum based products as they may cause rubber deterioration.
  • New valves, cores, caps and O-rings should be installed with new tires.
  • After mounting the tire, centering of the tire to the rim must be verified.
  • Any information regarding rotation direction or outer sides should be taken into consideration if available on the sidewall.

HOW TO INFLATE A TIRE

  • Never sit on or stand in front of a tire and rim assembly while it is being inflated. Keep a secure distance for your safety.
  • Always inflate tire/rim assembly in an approved safety cage or equivalent restraining device using remote controlled clip-on air hose.
  • Do not exceed recommended inflation pressure.
  • It also important not to exceed the recommended inflation pressure (40psi) during the seating of the bead. In case the bead is not seated appropriately; cancel the process and then deflate the assembly, reposition the tire on the rim, re-lubricate tire beads, rim humps and bead before starting re-inflating.
  • Use a moisture/dirt filter at the pressurized airline to prevent any moisture/dirt inside the tire.
  • Never use hammer on an inflated or partially inflated tire/rim assembly.

TIRE AGE

DOT number,

a very important information regarding the production week of the tire, is displayed on your tire’s sidewall. The last four numbers of DOT identify the week and the year of manufacture.

6 to 10 years

Based on various sources, a tire can last from

DOT XX1318

DOT XX1318 for instance, means that the tire was manufactured in the 13th week of the 2018 as the two numbers refer to the week, the last two digits show the year.

10 years ago

That’s why all tires (including spare tires) should be replaced with new tires if they were manufactured more than

DOT number,

a very important information regarding the production week of the tire, is displayed on your tire’s sidewall. The last four numbers of DOT identify the week and the year of manufacture.

6 to 10 years

Based on various sources, a tire can last from

DOT XX1318 for instance, means that the tire was manufactured in the 13th week of the 2018 as the two numbers refer to the week, the last two digits show the year.

DOT XX1318

That’s why all tires (including spare tires) should be replaced with new tires if they were manufactured more than

10 years ago

TIRE DAMAGES

IMPACT BREAK

Generally stems from a sudden and excessive force exceeding the limitations of the reinforcement materials applied to the exterior layers of the tire. 


The root cause may be a road hazard or driver abuse.

CHAFER SEPARATION

Probable causes for chafer separation are improper bead seating, improper rim size, overload condition, under inflation, impact or possible manufacturing conditions.

BURNED BEADS

Generally emanate from excessive exposure to heat caused by frequent hard braking; improperly adjusted brakes; faulty braking system or insufficient air flow around the brakes.

SIDEWALL DAMAGE

It occurs as a result of a loss in inflation pressure. As the condition progresses, the diagnosis of the root cause becomes difficult – if not impossible.

SHOULDER DAMAGE

Stems from under inflation, overloading or excessive speed as these conditions can build the heat up. Excessive heat can weaken or damage cords or rubber compounds which may in turn cause separation of the plies.