Owners of sedans and liftbacks Skoda Superb third generation (often mistakenly called A7 by analogy with Audi) are faced with the issue of choosing the right tires. Not only a comfortable ride, but also safety and the safety of the suspension depend on the correct selection. The wrong size can cause the wheels to hit the arches or block the brakes.
The manufacturer has provided several wheel configuration options for different trim levels and engine types. You need to focus not only on the diameter, but also on the width of the disk, offset and load index. Ignoring these parameters can cause serious damage to expensive vehicle components.
Basic wheel arch parameters and compatibility
For model Skoda Superb III wheels from 17 to 19 inches are standard. Rim widths typically range from 7.0J to 8.0J, allowing for tires ranging from 215mm to 245mm wide. It is important to consider that for all-wheel drive versions 4x4 Dimensional requirements are more stringent than for front-wheel drive counterparts.
The tire size must provide the necessary clearance to the body and suspension elements. When installing non-standard sizes, such as a low profile on a wide rim, you must ensure that there is no friction when the vehicle is fully loaded or when going over uneven roads.
- βοΈ Standard offset (ET) for most models is 43-45 mm
- π§ Mounting base: 5 bolts with a pitch of 112 mm (5x112)
- π¨ Center hole: 57.1 mm (required to use centering rings if different)
If you plan to install disks with other parameters, you will need to consult a specialist. Incorrect offset can alter alignment and accelerate tire wear.
Official tire sizes by season and trim level
The manufacturer recommends the use of certain sizes depending on the season and road conditions. For the summer period, options with diameters R17 and R18 are most often used, providing a balance between controllability and comfort. In winter, tires with a higher profile are preferable for better shock absorption.
The table below shows the most common sizes that can be found at the manufacturer. Pay attention to the speed and load index, which should correspond to the recommendations for your engine.
| Disc diameter | Tire size | Disc width (J) | offset (ET) | Pressure (bar) |
|---|---|---|---|---|
| R17 | 215/55 | 7.0 | 43 | 2.3 / 2.5 |
| R18 | 235/45 | 7.5 | 45 | 2.4 / 2.6 |
| R19 | 235/40 | 8.0 | 47 | 2.5 / 2.7 |
| R19 (Sport) | 245/35 | 8.0 | 48 | 2.6 / 2.8 |
Remember to check the information on the sticker located on the driver's door pillar or fuel tank cap. It shows the exact pressure values ββfor a specific vehicle weight.
β οΈ Attention: Installing tires with a load index lower than that recommended by the factory is strictly prohibited; this can lead to destruction of the sidewall when driving on bad roads.
- R17
- R18
- R19
- R20
Features of choosing winter tires for Superb
The winter period requires a special approach to choosing tires. For Skoda Superb It is critical that the tire has enough profile height to compensate for uneven roads and snowdrifts. Low-profile tires on winter roads often cause the disc to puncture on ice blocks.
Many owners upgrade to a higher profile size R17 or R18 (55 or 50) for winter kit. This allows you to install wheels of a smaller diameter, which significantly reduces the cost of a set of hardware and tires. In addition, the softer sidewall absorbs impacts better.
- βοΈ Use only winter tires marked M+S and with a mountain icon with a snowflake
- π© For studded tires, check that they are suitable for mounting on rims (not all alloy rims are suitable for studs)
- π Keep in mind that winter tires are often wider than summer tires for better traction on snow.
βοΈ Preparing for the winter season
The influence of rim width and offset on handling
Disc parameters directly affect the car's behavior on the road. Increasing the width of the rim (J) allows the installation of a wider tire, which improves traction on asphalt on dry surfaces. However, rims that are too wide can cause them to hit the suspension components when turning the steering wheel.
Wheel offset (ET) determines how far the wheel extends from the body. Reducing the offset (for example, from 45 to 40 mm) will widen the vehicle's track, which can improve cornering stability. But this increases the load on the wheel bearings and suspension arms.
β οΈ Attention: A change in offset by more than 5 mm in any direction requires a mandatory check of the suspension geometry and possible replacement of arms or spacers.
If you decide to change the stock settings, use spacers, but remember that this increases the load leverage. For Skoda Superb with independent rear axle suspension this is especially critical.
How to calculate allowable overhang?
To calculate, use the formula: ETnew = ETstandard + (Disc width - Disc width)/2. The difference should not exceed 5 mm.
When selecting wheels, pay attention to the design of the spokes. Some disc models may not fit the brake caliper design, especially if you have a version with stronger brakes.
The safest option is to adhere to the factory recommendations for width and offset; deviations are possible only in a narrow range and taking into account the characteristics of the suspension.
Tire pressure and monitoring system operation
Tire Pressure Monitoring System (TPMS) in Skoda Superb works based on sensors in the wheels. It requires precise settings. The pressure depends on the vehicle load: an empty cabin requires one value, and a full load of passengers and luggage requires another.
Too low a pressure will cause the tire to overheat and increase fuel consumption. Too high pressure reduces the contact patch, making the car more "nervous" and reducing comfort. Inflation should be done on cold wheels.
- π Empty vehicle: 2.3 bar (front axle) / 2.5 bar (rear axle)
- π¨βπ©βπ§βπ¦ Full load: 2.6 bar (front axle) / 2.9 bar (rear axle)
- βοΈ In winter: increase pressure by 0.2 bar relative to summer values
After changing the pressure, you need to reset the system settings through the menu of the onboard computer. Otherwise, the system will issue false warnings about the malfunction.
Before a long trip, check the tire pressure visually and with a gauge, as the sensors may have a slight error or delay in data transmission.
Non-standard dimensions and wheelbase tuning
Some owners are looking to install larger diameter wheels, such as the R20 or even the R21, to improve the appearance. This is possible, but requires careful tire selection. When increasing the diameter of the disc, it is necessary to reduce the tire profile so that the total diameter of the wheel remains the same.
The design diameter of the wheel should differ from the standard by no more than 2%. Otherwise, the speedometer will show an incorrect speed, and the stabilization system (ESP) may not work properly. The maximum permissible wheel diameter for the Superb III is 735 mm.
Installation of wide disks may require the completion of arches (rolling or installing expanders). It is also worth remembering that wider tires increase rolling resistance and fuel consumption.
Example of size calculation for R20
The standard size of 235/45 R18 has a diameter of ~700 mm. For the R20, you need to choose a tire 245/35 to keep the total diameter within 700 mm.
FAQ: Frequently Asked Questions About Skoda Superb Tires
Can I put R19 discs on the winter set?
Technically, this is possible, but not recommended. In winter, it is better to use smaller diameter discs (R17 or R18) with a higher tire profile. This will provide better depreciation and protection against damage when driving on bad roads.
What is the permissible pressure spread in the tires?
The pressure difference between the left and right sides of one axle shall not exceed 0.1 to 0.2 bar. Otherwise, the car will be taken aside when driving, which is dangerous at high speeds.
What to do if the TPMS pressure indicator is on?
First, check the pressure with a pressure gauge in all wheels. If the pressure is normal, perhaps the sensor battery is sat down or you need to reset the settings through the menu Vehicle β Tires.
Is it possible to mix tires from different manufacturers on the same axle?
Absolutely not. On one axle shall be tyres with the same tread pattern, degree of wear and from the same manufacturer. Mixing can lead to loss of control in an emergency.
Which wheels are better: cast or forged?
Forged wheels are lighter and stronger, which improves dynamics and reduces the load on the suspension. But they're more expensive. Cast discs are the best choice in terms of price and quality for normal operation.