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 numbers on Tyres mean Australia?
For example, the code on a common fitment for Australian cars is: 205/65R15 95H. 205 indicates the
normal section width of
the tyre in millimetres (205mm). 65 indicates its aspect ratio, a comparison of the tyre’s section height with its section width (65 indicates the height is 65% of its width).
What do the 3 numbers mean on tire size?
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. … In this example, the aspect ratio is 65, meaning the sidewall is 65 percent as high as the tire is wide.
What do the numbers and letters mean on Tyres?
The
first number is the width of the tyre in millimetres
. Therefore, this radial tyre has a width of 205mm. The ’65’ confirms the height shown as a percentage of the full tyre width. The letter ‘R’ depicts the variety of tyre. … The number ’16’ is the wheel rim diameter stated in inches.
How do you read tyre codes?
- P: Stands for passenger vehicle. …
- 215: It is the width (in millimetres) of the tyre from sidewall to sidewall. …
- 65: Next up is the aspect ratio of the tyre. …
- R: Of course, it stands for Radial. …
- 15: Represents the wheel diameter. …
- 95: This number denotes the load bearing capacity of the tyre.
Can I use 235 tires instead of 225?
Are 225 and 235 Tires Interchangeable?
Yes
, they are. However, this is only possible if your car’s rims can accept the larger millimeter.
Can I use 225 tires instead of 215?
Yes, you can
. But only if the rims on your car can accommodate tires that are 10-20 millimeters wider. Bear in mind that wider wheels require more fuel due to their increased rolling resistance. Again, wider tires are more costly than narrower ones because they need more rubber during construction.
What does T stand for on Tyres?
If there is a T before the tyre width, this means “
temporary use
” and indicates an emergency tyre.
What does 89w mean on a tyre?
The load rating tells
you how many pounds a tire can safely carry
. In our example, the number 94 has been assigned to a load carrying capacity of 1477 pounds (per tire).
How do I know what Tyres I need?
The size of a tyre is printed onto the side of the tyre – on the area known as the
sidewall
. When looking for the size, you will see that it is made up of a series of numbers and letters. 55 – Height of the tyre sidewall as a percentage of the width. In this case 55%.
What are common problems with Tyres?
Avoid Tyre Problems with Better Tyre Knowledge
Road hazards like potholes, glass and nails and other objects are usually unavoidable. There are, however, three main causes of tyre problems that are avoidable:
incorrect inflation pressure, speeding and overloading
.
What does V mean in TYRE size?
SPEED RATING V
Once the highest speed rating a tire could have, “V” used to represent a
maximum of 149 mph (240 kph) or more
. Nowadays, it means 149 mph but no higher.
Can I mix V and W rated tyres?
You can invalidate your car insurance by fitting new tyres that have a lower speed rating than the manufacturer’s original fit. …
Mixing tyre speed ratings isn’t recommended.
How do you read a tyres age?
The chronological age of any tire can be
found on the tire sidewall by examining the characters following the symbol “DOT”
. The last four numbers identify the date of manufacture of the tire to the nearest week. The first two of these four numbers identify the week of manufacture (which range from “01” to “53”).
Can I use 235 55r17 instead of 225 65R17?
Registered. 235 will fit width
wise
, if the rim is the correct offset. You will loose ~1.4′′ in diameter going to the 55 though. Your speedo will be off.
Can I use 225 60R17 instead of 235 65R17?
Not safely
, no. If you go to a narrower tread width tire you will want to increase the sidewall height aspect ratio exponentially. The shorter sidewall 225/60R17 tire will not provide the needed load carrying capability needed for your vehicle.
