Selection of rims for ล koda Octavia A7 (2013โ2020) is a task that requires attention to technical nuances. Error in bolt pattern parameters (PCD) or departure (ET) can lead not only to visual imbalance, but also to serious problems with handling, suspension wear and even safety. In this article we will look at all key parameters disks for Octavia A7, including factory sizes, permissible deviations and nuances of selecting non-original models.
Feature Octavia A7 โ platform unification MQB with other models of the concern Volkswagen Group (for example, Golf VII or Audi A3 8V). This expands compatibility options, but also adds risks when purchasing โuniversalโ drives. We'll explain in detail why Even with a 5x112 PCD match, it is important to check the center bore diameter (DIA) and offset (ET), and will also provide current data for all modifications - from basic 1.4 TSI to charged RS 2.0 TSI.
What is a bolt pattern and why is it important for the Octavia A7
Term bolt pattern (or PCD - Pitch Circle Diameter) denotes two key parameters: number of mounting holes and circle diameteron which they are located. For ล koda Octavia A7 factory standard - 5ร112. This means:
- ๐ข 5 holes under bolts or nuts.
- ๐ The diameter of the circle passing through the centers of the holes is - 112 mm.
Deviation from this parameter is fraught with:
- โ ๏ธ Uneven tightening wheels - one hole can โmoveโ the disk to the side, creating runout.
- โ ๏ธ Accelerated wear wheel bearing and suspension elements.
- โ ๏ธ Refusal to undergo maintenance โ non-compliance of parameters is considered a critical defect.
Important: some sellers market discs with PCD 5ร110 or 5ร100 as "suitable" for Octavia A7 using adapter rings. This dangerous delusion โ such discs do not provide reliable fixation and can lead to an accident during emergency braking.
- Cast
- Forged
- Stamped (steel)
- Replicas of the original
Factory parameters of ล koda Octavia A7 wheels by modification
Disc parameters vary depending on the configuration and engine. Below is a table with official data for the main versions Octavia A7 (2013โ2020):
| Modification | Disc size (R) | PCD | ET (reach), mm | DIA (hub), mm | Rim width, inches |
|---|---|---|---|---|---|
| 1.4 TSI (140 hp), 1.6 TDI (105 hp) | 16โ17 | 5ร112 | 45โ50 | 57.1 | 6.5โ7.5 |
| 1.8 TSI (180 hp), 2.0 TDI (150 hp) | 17โ18 | 5ร112 | 45โ48 | 57.1 | 7.0โ8.0 |
| RS 2.0 TSI (230 hp), RS 2.0 TDI (184 hp) | 18โ19 | 5ร112 | 45 | 57.1 | 7.5โ8.5 |
| Scout (all-wheel drive) | 17โ18 | 5ร112 | 48โ50 | 57.1 | 7.0โ8.0 |
Please note:
- ๐ง For versions with all-wheel drive (4ร4) permissible offset (ET) may differ by ยฑ2 mm from the specified values.
- ๐ Discs from Octavia A5 (PCD
5ร100) incompatible with A7 without adapters not recommended for use. - โ ๏ธ DIA 57.1 mm is a critical parameter. Discs with a large central hole will require hub rings (hubs).
When purchasing used discs, check them for runout using a micrometer or at a service station. Even minimal deformation (0.3โ0.5 mm) can cause vibration at speeds above 100 km/h.
Overhang (ET) and its effect on handling
Disc offset (ET) โ this is the distance between the mating plane of the disk and its central axis. For Octavia A7 factory range - ET45โET50. Deviations from this value affect:
- ๐ Wheel bearing load: smaller overhang (e.g.
ET40) increases the force leverage, accelerating wear. - ๐ Behavior on the road: overhang too big (
ET55+) narrows the track, impairing stability. - ๐ง Brake compatibility: discs with a short offset may interfere with the calipers (relevant for versions with large brakes, for example, RS).
Permissible deviations:
- โ
ET42โET52- safe range for most modifications. - โ ๏ธ
ET38โET42orET52โET55โ require checking for compatibility with the suspension and arches. - โ
ET < 38orET > 55- not recommended due to risk of breakage.
โ ๏ธ Attention: On versions Octavia A7 RS with brakes340 mmoffset wheelsET < 45may come into contact with the calipers. Before purchasing, check compatibility with the disc manufacturer.
โ๏ธ Checking the offset before purchasing wheels
Center bore (DIA) and hub rings
Central hole diameter (DIA) for Octavia A7 โ 57.1 mm. This parameter is often ignored, but it is important for:
- ๐ฏ Wheel alignment โ the disc should fit on the hub without play.
- ๐ง Balancing - incorrect DIA leads to runout at high speeds.
If you buy discs with a large center hole (for example, 66.6 mm for universal models), will be required hub rings. Their parameters:
- ๐ Outer diameter - corresponds to the DIA of the disk (for example,
66.6 mm). - ๐ Inner diameter -
57.1 mm(under the hub Octavia A7). - ๐ Material - aluminum or plastic (the latter is less durable).
โ ๏ธ Attention: Plastic hub rings can become deformed if the bolts are over-tightened. For Octavia A7 Aluminum hubs with a wall thickness of at least 3 mm.
Selection example:
- ๐ Disk with DIA
72.6 mmโ a ring will be required72.6โ57.1 mm. - ๐ Disk with DIA
57.1 mmโ hubs are not needed.
Rim width and recommended tire sizes
Disc rim width (J) must correspond to the width of the tire. For Octavia A7 The following recommendations apply:
| Rim Width (inches) | Recommended tire width (mm) | Tire size example |
|---|---|---|
| 6.5J | 195โ215 | 195/65 R16, 205/55 R17 |
| 7.0J | 205โ225 | 205/55 R17, 225/45 R18 |
| 7.5J | 215โ235 | 225/40 R18, 235/35 R19 |
| 8.0J | 225โ245 | 225/40 R18 (for RS) |
Nuances:
- ๐ For winter tires, the rim width can be reduced by
0.5โ1.0 inch(for example,7.0Jinstead of7.5J). - ๐ On Octavia A7 Scout (high cross-country ability) it is recommended to adhere to the width
7.0โ7.5Jfor better grip. - โ ๏ธ Wider tires
235 mmon disks7.5Jmay rub against the arches when fully loaded or on uneven surfaces.
How to check tire and wheel compatibility?
To check, use the formula: (tire width in mm - rim width in mm ร 25.4) / 2. The result should be in the range of 75โ100%. For example, for a 225 mm tire and a 7.5J rim: (225 - 7.5ร25.4) / 2 โ 28.5% is unacceptably small reserve (optimally 75โ100%).
Selection of non-original discs: what to look for
When selecting discs other than ล koda consider:
- ๐ง Certification: discs must be marked
ECE R124orTรV. - ๐ Manufacturer's warranty: minimum term - 1 year for alloy wheels, 2 years for forged ones.
- ๐ Reviews about the model: Check the forums (e.g. SkodaClub or Drive2) for complaints of cracks or corrosion.
Popular brands compatible with Octavia A7:
- ๐ Original: ล koda (items start with
5E0 601 025). - ๐ฅ Premium: BBS, OZ Racing, Ronal (series
R15,Turbo). - ๐ฅ Budget: Dezent, AEZ, Alutec (check reviews!).
Beware of fakes! Signs of low-quality disks:
- โ ๏ธ Lack of markings with parameters (
PCD,ET,DIA). - โ ๏ธ The weight is less than stated (for example, a cast disk weighs the same as a stamped one).
- โ ๏ธ Uneven color or roughness on the inside.
Even if a disc looks compatible with PCD and ET, be sure to check it for runout and balancing on a bench. A defective disc may collapse when hitting a hole.
Common mistakes when choosing disks and how to avoid them
Error 1: Ignoring the DIA parameter.
Many people buy discs with DIA 66.6 mm (for example, from BMW), forgetting about the hub rings. This leads to:
- ๐ง Wheel play and vibration at speed
80+ km/h. - ๐ง Accelerated wear of the wheel bearing.
Error 2: Selecting drives with unsuitable ET.
Example: installing disks with ET38 on Octavia A7 1.6 TDI (factory ET50). Consequences:
- ๐ The wheel "bulges out" and there is a risk of hitting the arch.
- ๐ง Increased load on shock absorbers.
Error 3: Buying discs without taking into account the brake system.
On Octavia A7 RS with brakes 340 mm disks must have:
- ๐ Sufficient clearance for the caliper (check the template).
- ๐ Departure no less
ET45.
โ ๏ธ Attention: If, after installing new discs, vibration appears on the steering wheel when braking, immediately check:
- ๐ง Correct tightening of bolts (torque -
120 Nm).- ๐ง Wheel balancing (permissible imbalance - no more than
5 g).- ๐ง Alignment of the hub and disk (play in the central hole).
FAQ: Frequently asked questions about the Octavia A7 bolt pattern
Is it possible to install Golf VII wheels on an Octavia A7?
Yes, Volkswagen Golf VII and ล koda Octavia A7 built on one platform MQB, therefore their disks are interchangeable if the parameters match:
- ๐ง
PCD 5ร112. - ๐ง
DIA 57.1 mm. - ๐ง Departure (
ET) in the range45โ50 mm.
Exception: discs from Golf VII R with brakes 370 mm may not fit basic Octavia A7 due to the narrow clearance.
What wheels are suitable for Octavia A7 with all-wheel drive (4x4)?
For versions 4ร4 (for example, Scout) priority drives with:
- ๐ง Departure
ET48โET50(to maintain suspension geometry). - ๐ง Rim width
7.0โ7.5J(for tire225/50 R17).
Discs with ET < 45 - they will increase the load on the drive shafts.
What happens if you install disks with PCD 5x100?
Discs with PCD 5ร100 (for example, from Octavia A5) incompatible with A7 for the following reasons:
- โ ๏ธ Only one hole out of five will match exactly, the rest will be offset.
- โ ๏ธ As the bolts move, they will gradually โrip outโ the threads in the hub.
- โ ๏ธ Risk of wheel tearing off at high speed.
Using adapters (adapters) does not solve the problem - they are not certified for road use.
How to check the authenticity of original ล koda wheels?
Original wheels ล koda have:
- ๐ท๏ธ Marking with the article number (for example,
5E0 601 025 B). - ๐ท๏ธ Logo ล koda and on inscription
Made in Germany/Czech Republic. - ๐ท๏ธ Hologram on the packaging (for new discs).
Fakes often differ:
- โ ๏ธ Lack of marking
ETandDIA. - โ ๏ธ Uneven coloring (especially on the inside).
Is it possible to install ET 35 wheels on an Octavia A7?
Discs with offset ET35 not recommended for Octavia A7 for the following reasons:
- โ ๏ธ The load on the wheel bearing and shock absorbers increases.
- โ ๏ธ The wheel moves outwards, which can lead to hitting the arch or mudguard.
- โ ๏ธ On versions with all-wheel drive, contact between the disc and the axle shaft is possible.
Exception: some tuning shops install wheels with ET35โET40 on Octavia A7 RSbut this requires:
- ๐ง Installing spacers (not always legal).
- ๐ง Arch modifications (rolling).