- 1 What are e marked Tyres?
- 2 What do the letters mean on motorcycle tires?
- 3 What do the letters and numbers on a tire mean?
- 4 What do tire designations mean?
- 5 Are e marked Tyres road legal?
- 6 How do I know if my Tyres are road legal?
- 7 What does the B stand for on a motorcycle tire?
- 8 What does 67H mean on a motorcycle tire?
- 9 What does Zr mean on motorcycle tires?
- 10 What does the Z mean on tires?
- 11 Can I use 235 tires instead of 225?
- 12 What does R stand for in tire size?
- 13 Can you put different width tires on same rim?
- 14 What does the T or H mean on tires?
- 15 Are wider tires better?
What are e marked Tyres?
The ‘E‘ or ‘e‘ mark consists of an ‘E‘ or ‘e‘ followed by a number included in a circle of 12mm diameter or a rectangle. This symbol is followed by a further number. The ‘E‘ certifies that the tyre complies with the dimensional, performance and marking requirements of ECE Regulation 30.
What do the letters mean on motorcycle tires?
The first number is the tire’s width in millimeters; the second represents the tire’s aspect ratio, which describes the tire’s sidewall height as a percentage of its width. MC means it’s a motorcycle tire, while 62 is the load rating index, or the maximum amount of weight the tire can carry at maximum inflation.
What do the letters and numbers on a tire mean?
The number is the load rating, or the amount of weight that it can handle. The letter is the speed rating, or the maximum speed the tire is built for. As an example, a tire rated 90R could safely carry 1,323 pounds and travel at 106 mph.
What do tire designations 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.
Are e marked Tyres road legal?
If a tyre is bought from a reputable supplier and carries an E marking it meets the criteria for road use. It may handle horribly on tarmac, but it will be legal and pass an MOT.
How do I know if my Tyres are road legal?
Place a 20p coin into the main tread grooves of your tyre. If you can’t see the raised edge around the coin, your tyre’s tread is likely greater than 1.6mm and, therefore, legal. If, on the other hand, the outer band is visible when inserted, your tyre could be unsafe and require professional inspection.
What does the B stand for on a motorcycle tire?
The 90 represents the aspect ratio. The aspect ratio is the height of the sidewall expressed as a percentage of the width. Were this tire a bias-belted tire (like a bias-ply tire with additional, stiffening layers of fabric placed over the body plies), a capital letter “B” would separate the aspect ratio and rim size.
What does 67H mean on a motorcycle tire?
The MC designates that this is a motorcycle tire, and the 67H is the load and speed index. A 67 load index means the tire has a 667 maximum load rating. The H speed index means the tire is rated at a maximum of 130 mph.
What does Zr mean on motorcycle tires?
ZR basically means the tire is adapted for speeds above 149mph. ZR tires includes the speed ratings V(149mph), W(168mph) and Y(186mph). The R stands for radial.
What does the Z mean on tires?
A “Z” rating can mean different things. While it nearly always means a high performance tire for high-performing sports cars, “Z” may actually appear in the middle of a tire’s size information. When it does, it represents either a maximum speed of more than 149 mph (240 kph) or 186 mph (300 kph).
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 does R stand for in tire size?
For example, this aspect ratio of 50 means that the tire’s section height is 50% of the tire’s section width. R indicates the construction used within the tires casing. R stands for radial construction.
Can you put different width tires on same rim?
To keep the suspension and speedometer functioning correctly, both the stock diameter and width of the wheels and tires needs to be maintained. As a general rule of thumb, it’s safe to fit a tire up to 20 millimeters wider than stock on the original rim.
What does the T or H mean on tires?
All these ratings cover speeds well above legal limits. The most popular, S, T, and H, are rated for 112, 118, and 130 mph, respectively. Traditionally, most family cars have used S- and T-rated tires, while tires rated H and higher have mostly been available only in sports cars or upscale sports sedans.
Are wider tires better?
From a safety point of view, both types have their good sides: On a dry road, wider tires will offer more grip than narrow ones, but the risk of aquaplaning will be higher with wide tires. – In the winter, narrow tires are better under extreme conditions as they provide higher surface pressure against the road.