What does Zr mean on a motorcycle tire?

Certain “V” or “VR” rated tires may have a speed capacity greater then 149mph (240kph). Check with your local tire distributor for maximum speed information if your motorcycle exceeds this speed capability. Tires also come with a Z or ZR rating. These are high-performance tires built for speed.

What is the highest speed rating for a motorcycle tire?

All tires have speed ratings that are represented by a letter or in some cases two letters that correspond to the maximum speed that is recommended for the tire while carrying a load corresponding to its designated load index….Speed ratings are as follows:

Code Rated Speed
V 149 mph
W 168 mph
Y 186 mph
Z/ZR 149+mph

Are ZR tires run-flat?

The range on Run-flats varies depending on the brand but it is approximately 50 miles in range. Should I stay with Run-flats? At ZR we would recommend that if your car is originally fitted with Run-flat tyres then your vehicle should stay on them.

What is Zr on tire size?

For tires having a maximum speed capability above 240 km/h (149 mph), a “ZR” may appear in the size designation. For tires having a maximum speed capability above 300 km/h (186 mph), a “ZR” must appear in the size designation. Consult the tire manufacturer for maximum speed when there is no service description.

What is AZ rated motorcycle tire?

Now… sometimes we will see a ZR in the tire size and then a different Load Rating / Speed Index label to follow. This Z indicates a maximum sustained speed capability in excess of 149 mph and the 91W indicates a 168mph Maximum Top Speed.

How do I check my motorcycle tire speed rating?

The tire speed rating is engraved on each tire’s sidewall along with other important specifications. Ratings are expressed as one or two letters that correspond to a mileage capacity.

What does Zr mean?

ZR shown on the sidewall of your tire is a reference to the tire’s speed rating.. Historically, the speed rating ZR on a tire meant that the construction of the tire could reach of 150 miles or 240 kilometers per hour. Today, a tire labeled ZR, has more capabilities than before.

How do you read a tire size ZR?

The three-digit number is the tire’s section width in millimeters followed by the aspect ratio: sidewall height divided by section width. The following letter(s) describe the construction: R is for radial; ZR stands for a Z-rated radial (see service description); and ZRF means Z-rated run-flat (rare).

Are Michelin ZR run flats?

Michelin – ZP Michelin integrated their ZP (Zero Pressure) run flat technology to existing tyre models in order to enhance their performance.

What is aw speed rating on a motorcycle tire?

168 mph
In the case of higher speed-rated tires, you may notice a W, (W), or Y at the end of the sequence. These exceptional speed ratings are W, 168 mph; (W), 168+ mph; Y, 186 mph. Some other important codes to consider are the manufacturing date.

What does 92h mean on tires?

A tire with an H rating has a higher limit — 130 mph — which means it can be safely driven faster than the tire with the 94T code. Manufacturers may produce identical tire models with different speed ratings.

What is Zr tire rating?

ZR stands for US DoT tire speed rating (over 150 mph) Suggest new definition. This definition appears very rarely and is found in the following Acronym Finder categories: Science, medicine, engineering, etc.

What does ZR mean in tires?

ZR basically means the tyre is adapted for speeds above 149 mph. ZR tyres includes the speed ratings V(149mph), W(168mph) and Y(186mph). Nowadays, the marking ZR is not relevant anymore but it is still used in the catalogues of manufacturers and tyre retailers.

What are Z rated tires?

“Z” Ratings. A tire rated with the letter “Z” in the tire size designation (i.e. P275/40 Z R17 93 W or 275/40 Z R17 93 Y) is the tire which have a maximum speed capability above 240 kph/149mph. Tires having a maximum speed capability above 300 km/h (186 mph) must have “Z” in the size designation and the service description must include Y in…

What is the speed rating of a motorcycle tire?

Speed Rating On Motorcycle Tires. Scooter Tires The majority of scooter and moped tires are rated for 62 MPH (100 Km/H). SPEED RATING LETTER MPH Km/H (KPH) J 62 100 K 68 110 L 74 120 M 81 130 N 87 140 MOTORCYCLE TIRE SPEED RATING CHART .