Tires on registration book?

The correct sizes of the tires approved for the car in question can be found in sheet no. 3 of the vehicle registration document, just under the wording Tires (in capital letters). For example, if you own a C-segment sedan, a string similar to this might appear: 205/55 R16 91V.

How to read the tire size in the booklet?

Tire sizes in the vehicle registration document
  1. 185 – Tire width in mm.
  2. 64 – Tire height / width ratio in percentages. …
  3. R – Tire structure.
  4. 15 – Diameter of the rim in inches.
  5. 88 – Load capacity index;

What happens if I put on different tires?

A different tire from the other three is definitely dangerous, so the tire of a different size (195/60 R15) must be replaced immediately. When braking, the car could rotate on itself as one of the tires is about 1 cm smaller in diameter, and this can be very risky.

What happens if I mount bigger wheels?

The larger wheels have a larger diameter and this leads to a reduction in the shoulder of the rubber, so the tires will be lowered. The tread will be wider and the profile lower and this leads to better handling.

What does the list of accepted compatibilities mean?


Now that you know all the sizes of tires that you can fit, you need to consult the next section LIST OF ADMITTED COMPATIBILITIES which shows the combinations accessible for your car between the front and rear axles.

Related Questions

What does the letter B on the tires mean?

Each letter represents the maximum speed a tire can withstand when used at the recommended load capacity. In our example, the letter “H” corresponds to a maximum speed of 209 km / h.

How do you know if the tires are four seasons?


In all seasons the denomination bears the acronym 4S which identifies the rubber as 4 seasons. Symbol: In addition to the wording 4S, another identifying mark of the 4 seasons is the initials Mud + Snow (mud and snow) which certifies the use of rubber in the winter seasons.

What changes between circles 17 and 18?

The grip of 17-inch or larger wheels is greater than that of smaller diameter wheels. … 18-inch wheels also have stronger traction, but comfort on the road is sacrificed a lot. In addition, smaller diameter rims guarantee greater protection of the rims, especially if they are made of alloy.

What to do to fit larger rims?

  1. check with your tire dealer the models and diameters approved for your car.
  2. choose, buy and install the new rims.
  3. Receive from the tire dealer. …
  4. updates the booklet at the Motorizzazione Civile with the new size of rims and tires issued by the tire dealer.

How much does it cost to homologate larger rims?

How much? Two postage stamps for a total of just over € 50.00. The NAD homologation and the signature of the professional are always included in the pure price of the chosen rim, without any surcharge. The only extra cost are the postage stamps due to the motorization.

How to fit wider tires?

The approval of larger wheels can also be requested on
  1. send an email to with the homologation request and attaching the registration document of your car.
  2. the technical staff will send you a list of all the wheels that can be approved to the extent requested by you.

What happens if they stop me with non-homologated rims?

Importers, manufacturers and traders of non-approved tires are sanctioned by Article 77, with a fine ranging from a minimum of € 779 to a maximum of € 3,119, subject to requisition and seizure of the tires, even in the event that the are not installed on the vehicle.

How must the tires be to pass the inspection?

The legal tread depth limit is 1.6mm for cars, 1mm for motorcycles and 0.5mm for mopeds. Under this thickness, the vehicle will be rejected and you will be forced to repeat the inspection within a month, after having replaced the tires.

How is the calculation to be made to choose the spare wheel?

Usually the size of the spare wheel is smaller only in terms of width, but they can also be smaller in terms of diameter, increasing the shoulder of the tire. The rolling surface, in fact, is what counts: it must be the same for all four wheels!

What tires is fitted on the 600?

Car Tires for FIAT Seicento

Approved tire sizes for FIAT Seicento considered as a compact sedan from 145/70 R13 71T to 175/50 R14 74H.

What tires can be fitted on 18 wheels?

If you want to use the 18 for the summer you have to buy new tires for those rims, with the same sizes as the winter ones, probably 225/40 R18 … Check on the shoulder of the latter and in the booklet where there is the list of the measures that can be mounted …

How much does it cost to homologate car rims?

The cost of the procedure in the Motorization is about € 50 to be paid via postal slips usually at the time of booking the test. The Wheels Decree no. 20 can only be applied to M1 type-approved passenger transport vehicles (cars, SUVs, 4 × 4s, campers).

How to know if the rims are homologated?

The homologation number, whether ECE or NAD, must always be present on the side of the rim. This number must then be clearly visible even when the wheel is installed on the vehicle.

How much does it cost to homologate tires?

In this case, you have to go to your motor vehicle, paying some bills (usually € 25 + € 16) and presenting the application for updating the booklet, which can be downloaded from the Motorist’s Portal, together with the documents issued by the tire dealer.

How big is a 17-inch rim?

The circumference is 135.6539708 cm, but you have to see if the standard measurement is measured from the inner channel or from the edge.

What does 17 wheels mean?

where 7,5 determines the width of the rim channel expressed in inches; J identifies the shape of the wheel channel; X indicates that the circle is single-half; 17 is the diameter of the rim in inches on which the tire of the same value is mounted; ET 35 is the offset of the rim itself and the 5×100 is …

What is the difference between 17 and 16 wheels?

To be clear, the 2.54 cm difference between 16 and 17 must be divided by 2 and becomes 1.25 cm. You have considered halving the diameter of the circle since only half raises the panther. To be clear, the 2.54 cm difference between 16 and 17 must be divided by 2 and becomes 1.25 cm.

How many km can you do with all-season tires?

Always taking into consideration variables such as: type of route, weather conditions, driving style and tire size, the average duration of a 4-season tire is about 30,000 kilometers.

What is the abbreviation for winter tires?

Having said that, let’s address the issue of winter tires. Winter tires are marked with an abbreviation and a symbol. The acronym M + S (or M&S, MS, M / S, MS), acronym for “Mud + Snow”, that is “Mud and Snow”, to testify that these tires are not necessarily useful only on snow-covered surfaces.

How to recognize and read winter tires?

Yet understanding whether a tire is winter is very simple: just check for the presence of the “M + S” symbol on the side exposed to the outside of your tires. The abbreviation “M + S” refers to the English words “mud + snow”, which in Italian mean “mud + snow”.

Visit Digital Global Times for more useful and informative answers!


Writing has always been a big part of who I am. I love expressing my opinions in the form of written words and even though I may not be an expert in certain topics, I believe that I can form my words in ways that make the topic understandable to others. Conatct:

Leave a Reply

Your email address will not be published. Required fields are marked *