# How To Read Motorcycle Tyre Size?

## How do you read motorcycle tire sizes?

Making Sense of Motorcycle Tire Sizes

1. THE FIRST NUMBER – WIDTH. The 130 indicates the width of the tire in millimeters.
2. THE SECOND NUMBER – ASPECT RATIO. The second number, the 90, represents how tall a motorcycle tire is in relationship to its width.
3. THE THIRD NUMBER – RIM SIZE. The last number, 17, refers to the tire’s rim diameter expressed in inches.

## What do motorcycle TYRE numbers mean?

The first section of this number indicates the tyre’s section width, in this case 120mm. The second number indicates the tyre’s aspect ratio or height expressed as a percentage of it’s width. The “17” denotes that the tyre is 17 inches in diameter whilst “M/C” means the tyre is for a motorcycle.

## What do TYRE size numbers mean?

The two-digit number after the slash mark in a tire size is the aspect ratio. For example, in a size P215/65 R15 tire, the 65 means that the height is equal to 65% of the tire’s width. The bigger the aspect ratio, the bigger the tire’s sidewall will be.

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## How wide is a 150 motorcycle tire?

Tire Width Cross Reference Table

Permissible Rim Widths Metric Standard Inch
2.50, 2.75, 3.00 130 5.00
2.75, 3.00, 3.50 140 5.50
3.50, 4.00 150 6.00
4.00, 4.50 160 6.25

## How does tire size affect motorcycle handling?

It’s always a balance of grip, handling, and wear. So, smaller, less powerful bikes can get away with smaller, narrower tires, while bigger, more powerful bikes require larger, wider tires so that they offer adequate traction and wear, but not so wide that it ruins the handling.

## Can I put bigger tires on my motorcycle?

When considering wider tires, you must factor in clearance for width and diameter, the effect on stability and handling, along with whether your rim is wide enough. If wider tires are approved for a motorcycle, it is usually permissible to increase by only one size designation.

## Are wider motorcycle tires better?

Having a wide rear tire helps to prevent slippage in wet, rainy conditions. Wide tires provide a smoother ride. They are more capable of absorbing the bumps on the road. Wider tires are great because they provide help with power transfer and help handle stronger motorcycle engines.

## How wide is a 200 motorcycle tire?

For example a 200/55R18 would be around 26.7 inches tall and 7.9 ( 200mm /25.4) inches wide.

## What is aspect ratio on a motorcycle tire?

The aspect ratio is the height of the sidewall expressed as a percentage of the width. Thus, this tire has a side wall height of 90 percent times 130 mm or 117 mm. The next item you’ll see is the rim size expressed in inches. It’s easy to see this tire is made to be mounted on a 16-inch wheel.

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## Can I use 235 tires instead of 225?

Yesthat size will work 100% perfectly, as it is the exact same diameter as the 225 /75-16. 235 /70-16 is actually a shorter tire.

## 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. It’s the height of the sidewall measured from wheel rim to top of the tread, expressed as a percentage of tire width. In other words, it’s sidewall height divided by tire width.

## How do you read a TYRE code?

When it comes to how to read tyre size, the first five digits of the code are the ones to concentrate on.

1. The first three digits belong together and indicate the width of the tyre (in millimetres).
2. The two digits following the first slash are what is known as the aspect ratio.