FAQ’S

FREQUENTLY ASKED QUESTIONS

Q: How often should a tyre be checked?
A: Tyres should be inspected at the very least, once per month. We like to refer to the first Tuesday of every month as Tyre Check Tuesday so make sure you take a couple of minutes out of your day to check your tyre pressures, tread depth and general condition. Tyres support nearly every function of a cars motion, including but not limited to road handling, braking and steering – so it is vital that you are sure your tyres are in top notch condition for the road. And don’t forget to check the spare either!

Register for a free Tyre Check Tuesday SMS reminder here and never forget your tyre check again!

 

Q: What should I do when checking my tyres?

A: Tread depths should be checked to ensure they exceed the legal minimum regulations of 1.6mm. You can do this with a Tyre Tread Depth Indicator or even a matchstick. Pressures should also be checked in line with the vehicle manufacturers recommended settings. Lastly you should do a quick visual inspection of each tyre to check for cuts, lumps or bulges.

To find out more check out our video on tyre treads and pressure here

 

Q: What pressure should my tyres be?
A: For everyday motoring, tyre pressure should never be lower than the manufacturer’s recommended pressure. This information is usually mounted on the drivers’ door edge or pillar, or in the glove box. Tyre pressure should only be checked when the tyres are cold. If you have to check the tyres when they’re hot, add at least 2psi (or 13.8kpa) to maintain optimal levels for safety. A good quality tyre pressure gauge allows you check tyre pressure before driving on the tyres.

If you are unsure when checking your tyre pressure, drop in to your local Bob Jane T-Mart. They can inflate your tyres to the correct pressure and teach you how to get it right, every time.

 

Q: Why is my steering wheel shaking?
A: The most common cause of steering wheel shake is your wheel balance, so it’s important to have this checked as soon as possible. Besides causing annoying steering wheel vibrations, seat vibrations and increased fuel consumption, improperly balanced wheels reduce road holding ability and also increase wear of shock absorbers, struts, suspension and chassis components.

Only perfectly balanced wheels will give you the assurance that you can keep control of your vehicle even when things get critical

 

Q: I have a puncture – what do I do?
A: A puncture in your tyre can lead to rapid tyre deflation, so it’s important to have a punctured tyre inspected as soon as possible to make sure you avoid permanent wheel damage. The first thing to do when you have a punctured tyre is to change that tyre for your spare.

It’s critically important to organise for the punctured tyre to be repaired as soon as possible. Depending on the area of the tyre where the puncture occurs will determine if the tyre is repairable. Generally tyres with punctures in the tread area are repairable.

 

Q: How does uneven tread occur?
A: As tyres are made up of many components, the causes for tyre wear can be due to many different reasons. You can find a list of the more common causes below:

  • Cracking Between Tread can be caused by:
    • Fatigue
    • High Torque
    • Incorrect Air Pressure
    • Overloading
    • Age
  • Lug Base Cracking can be caused by:
    • High Torque
    • Incorrect Application of tyre
    • Heat
    • Overloading
  • Shoulder Wear can be caused by:
    • Bent Axle Beam
    • Underinflated Tyre
    • Overloaded
    • Lowering of vehicle with incorrect springs
    • Rotation of tyre not properly timed
    • Defective Wheel Alignment
  • Sidewall Damage can be caused by:
    • A number of factors. It’s very hard to identify, however generally it’s the result of impact damage or a faulty tyre. In most cases if it’s not clearly impact damage, the tyre will need to be cut open to determine the cause.
  • Tyre Abrasion (wrinkles or discolouration) can be caused by:
    • Underinflation
    • Diagonal Wear can be caused by:
    • Underinflation
    • Defective Suspension or rotating parts
    • Rotation of tyre not properly times
    • Defective Wheel Alignment
  • Centre Wear can be caused by:
    • Overinflation
    • Incorrect tyre fitment for wheel
    • Tyre has been inflated for loaded vehicle on a vehicle with no load.
  • Flat Spot can be caused by:
    • Faulty brake system
    • Rapid starting or sudden braking when driving
    • New brakes (drum brakes only)
    • Wheel weight imbalanced