Tyres
A Beginner’s Guide: How to Read Tyre Sizes Correctly
Why Tyre Sizes Matter
Choosing the right tyre size is more than just fitting your wheels — it affects:
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Safety: Wrong size tyres can impact braking and stability.
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Performance: Proper size improves handling, grip, and ride comfort.
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Fuel Efficiency: Oversized or undersized tyres can hurt mileage.
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Tyre Life: The right size ensures even tread wear and longer lifespan.
Understanding Tyre Size: Example 245/70R16 111T
Here’s how to decode a typical tyre size you might find at Grip & Go Tyres:
|
Code |
Meaning |
What It Tells You |
|
245 |
Tyre width (mm) |
245 mm from sidewall to sidewall |
|
70 |
Aspect ratio (%) |
Sidewall height is 70% of tyre width |
|
R |
Construction |
Radial construction (most common) |
|
16 |
Rim size (inches) |
Fits a 16-inch wheel |
|
111 |
Load index |
Load capacity (check manufacturer’s chart) |
|
T |
Speed rating |
Max speed rating (T ≈ 190 km/h) |
Off-Road and 4x4 Tyre Sizes: Example 33x12.50R20 114Q
If you’re shopping for 4x4 tyres or mud tyres, you might see a different format like 33x12.50R20. Here’s what it means:
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33 – Overall diameter of the tyre (inches)
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12.50 – Tyre width (inches)
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R – Radial construction
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20 – Rim size (inches)
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114 – Load index
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Q – Speed rating
This style is popular for off-road and all-terrain tyres, helping you choose the right setup for lift kits and aftermarket wheels.
Tips for Choosing the Right Tyre Size
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Check your vehicle’s manual or door placard for manufacturer-recommended sizes.
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Match all tyres on the same axle to avoid uneven handling or damage.
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Consider your driving style: Highway drivers may prefer low-profile tyres for better handling, while off-road enthusiasts need taller tyres with thicker sidewalls.
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Never downgrade your load index or speed rating below manufacturer recommendations.
Common Tyre Types You’ll Find at Grip & Go Tyres
At Grip & Go Tyres, we stock a wide range of tyres for every vehicle type and budget:
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Mud Tyres (MT): Perfect for off-road enthusiasts.
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All-Terrain Tyres (AT): Best for mixed highway and dirt road use.
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Highway Tyres (HT): Quiet and comfortable for everyday driving.
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Premium, Budget, and Cheap Tyres: Options to suit every price range.
Final Thoughts
Learning how to read tyre sizes makes it easier to select the right tyres for safety, comfort, and performance. Whether you drive a family SUV, a work ute, or a lifted 4x4, Grip & Go Tyres has the right fit for you.
Ready for New Tyres?
Visit Grip & Go Tyres today for expert advice, tyre fitting, balancing, rotation, puncture repairs, and wheel alignments. Our team will help you choose the perfect size and type of tyre for your vehicle — so you can hit the road with confidence.
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