What are the tyre specifications?
Table of Contents
What are the tyre specifications?
Tyre Sizes & Specifications
- Width: The section width of your tyre in millimetres, from the inner sidewall to the outer sidewall.
- Aspect Ratio: The height of your tyre from the base of the tread to the rim, as a percentage of the tread width.
- Tyre Construction:
- Rim:
- Load Index and Speed Symbol.
How do you read tyre specs?
How to read the tyre size on the sidewall
- The width of the tyres in millimetres.
- Percentage height of the sidewall in relation to the width.
- Radial construction.
- Rim diameter in inches.
- Load index (the maximum load capacity of the tyre)
- Speed index (the maximum speed of the tyre)
What do the tyre numbers mean?
The important number on the side of your tyre – the indicate the size, profile and the weight and speed ratings of your tyre. These number represent, in order, the section width (225), aspect ratio (45), construction (R), rim diameter (19), load index (92) and speed rating (W).
What do the 3 numbers for tires mean?
B: TIRE WIDTH The three-digit number following the letter is the tire’s width (from side to side, looking at the tire head on) in millimeters. This may also be referred to as the section width. C: ASPECT RATIO The forward slash separates the tire width number from the two-digit aspect ratio.
What is tyre load rating?
Load index: Your tyre’s load index relates to its maximum carrying capacity (in kg). You’ll find the load rating of your tyre on the sidewall, just to the right of the diameter. For example, a tyre with a load index of 91 can carry 615kg of weight.
Which tyre profile is best?
A high profile (above 50) provides more protection, for a more comfortable drive and longer lasting wheels. A low-profile tyre, on the other hand, is more prone to damage, but the narrower sidewalls are considered better-looking, and provide better steering performance.
What does Y mean on tyres?
Z-rated high-performance tyres are rated for speeds in excess of 149mph. Confusingly, W-rated tyres are rated at a higher speed in excess of 168mph. Y-rated tyres are rated in excess of 186mph.
What does C mean on tires?
commercial-rated tire
The C-Type tire, on the other hand, is specifically meant as a commercial-rated tire, with a higher load rating for a given size than many LT tires. These C-Type tires will show the letter “C” immediately after the wheel diameter in the tire code. Example: 225/75R16C.
How are tyres classified?
In general, there are two major classes of tyres, according to the presence or absence of tubes in them. Thus, they are called ‘tubed tyres’ and ‘tubeless tyres’ respectively.
What does XL mean in tyres?
extra load
XL (or Reinforced) tyres are ‘extra load’ tyres – they indicate that a tyre is reinforced to be able to withstand a higher load than other tyres of the same size.
How do you calculate tyre load?
You’ll find the load rating of your tyre on the sidewall, just to the right of the diameter. For example, a tyre with a load index of 91 can carry 615kg of weight.
Which tyre size is more comfortable?
As expected, the 17″ tyre was the most comfortable, with the 18″ size delivering more of the road bumps into the car, especially at the rear of the car where the tyre has less weight to manage.
What does Z mean on tyres?
Some manufacturers will insert a “Z” in the middle of the tire size description (right after the aspect ratio) when the tire is rated at “W” or “Y.” And if a tire is rated in excess of 186 mph (300 kph), manufacturer’s usually will list a “Z” within the size description, per industry standards.
