You've recently bought your motorcycle, and you want to buy fresh shoes but aren't sure of your size? We know how frustrating that can be...
Continue reading this guide as we will break down all the important features of a motorcycle tyre and how you can find the correct size.
Here is a simple diagram of a motorcycle wheel with a tyre.
You will see information on the side wall of your tyre; they all have meanings, and this is where you can find your size!
We are going to break down each point and explain what it means to you.
Different brands will have different codes and information, but as long as you understand the basics, the rest will follow.
Brand
Each tyre will be engraved with its brand and model. Brands will do this for recognition to increase brand visibility and differentiation from their competitors. Seeing a well-known logo on a tyre can give riders confidence in the quality and performance of the product, which will therefore encourage them to buy it.
Motorcycle Tyre Size
You will be able to see large numbers on all side wall of tyres! This is where you can read your tyre size. The image above shows the dimensions: 120/70 ZR17
Here is what these codes mean:
120: Width of tyre, measured in millimetres
70: The aspect ratio, measured in percentages. This is the tyre's height as a percentage of the width
ZR: This relates to the speed rating. The 'R' stands for Radial construction, and 'ZR' refers to radial tyres designed specifically for high speeds. You will see 'ZR' mainly on sports motorcycles due to their speed capabilities
17: The diameter of the wheel, measured in inches
Motorcycle Tag
M/C simply means that this tyre is for a motorcycle.
Speed Rating
The speed rating on a motorcycle tyre indicates the maximum speed at which the tyre can safely operate at high speeds. It starts off with the load rating '58', followed by a letter code, such as the example on the image 'W'. Each letter corresponds to a specific maximum speed. You can learn more about the load and speed ratings here.
Image Example:
The load rating '58' corresponds to a maximum load of 236 kg
The speed rating 'W' corresponds to a maximum speed of 167.77 mph (270 km/h)
The speed rating is important because tyres are designed to withstand the forces and heat generated at high speeds. Exceeding the speed rating can lead to tyre failure, loss of control, and accidents. It's essential for you to choose tyres with an appropriate speed rating for your motorcycle and intended use.
Tyre Type
There are tubeless types and tube-type tyres. Tubeless tyres can operate without a tube because the tyre creates an airtight seal around the rim, which prevents air from escaping! Whereas tubed tyres (traditional tyres) rely on an inner tube to hold air pressure. They both offer great benefits, but ensure you are choosing the right one for your motorcycle!
County of Manufacture
The name of the country where the tyres are manufactured will be marked, telling you exactly where your tyres come from.
Manufacture Date
Most tyres will be marked with numbers (brands will display the dates differently from others) to show what date the tyre was manufactured. It can sound confusing; however, you should be able to identify the dates easily; the dates will generally follow after the DOT code. The date follows four figures: The first two are the week it was made, and the last two are the year.
Image example:
Date '4420'. The 44th week of the year in 2020
DOT Code
The 'DOT' stands for 'Department of Transport'. This mark signifies that the tyre has met the safety standard set by the U.S. Department of Transportation, reassuring you that the tyre is fresh and complies with safety standards.
Rotation
Arrows on motorcycle tyres indicates which way the tyre is mounted on the wheel correctly and is rotating in the intended direction. You will be able to see small arrows on your tyres!
These arrows are crucially important because motorcycle tyres are often designed with specific tread patterns and construction to improve performance, traction, and handling characteristics. Mounting the tyre in the wrong direction can affect these factors and compromise safety. If in doubt, you can refer to the manufacturer's instructions, consult with a professional motorcycle mechanic, or contact us for support!
These are the most important points to look out for when finding your motorcycle tyres! Remember to wear the same brand and tyre type for both your front and rears; otherwise it can impact performance. There is plenty of information online and in your motorcycle owner's manual.
However, please drop a comment or message us privately if you have any questions about this blog or any questions about finding the tyres for you!
Ride with Confidence!
The KIKI Spares Team
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