Small but legendary Soviet car Oka (VAZ-1111, 11113, as well as their clones from SeAZ and KamAZ) still remains popular among fans of compact cars. However, choosing tires for this car is not an easy task. On the one hand, the manufacturer clearly regulated the standard dimensions, on the other hand, owners often experiment with alternative options to improve cross-country ability or appearance.
In this article we will look at all acceptable tire sizes for Oka, including original and non-standard solutions, and we will also tell you how the wrong choice can affect handling, fuel consumption and suspension wear. You will find out what tires are installed on Oka with 0.65 and 0.75 liter engines, how the options for SeAZ-11116 (with body from Tavria), and what mistakes are most often made when replacing wheels.
Standard tire sizes on Oka: what the manufacturer says
Factory recommendations for VAZ-1111 and its modifications are strictly limited. According to the technical documentation, wheels with the following parameters are installed on the Oka:
- 🔹 135/80 R12 - basic size for most models, including VAZ-11113 with 0.75 l engine.
- 🔹 145/70 R12 - an alternative option that is sometimes found on later versions.
- 🔹 155/70 R12 — a rare factory version for export modifications.
These sizes are selected taking into account small wheelbase (2180 mm) and light weight car (about 650 kg). Any deviation from them can lead to problems with wheel alignment, increased load on the wheel bearings, or even wheels touching the wheel arch liners when the steering wheel is turned completely.
I wonder what SeAZ-11116 (Oka with body from ZAZ-1102 Tavria) was officially equipped with tires 155/80 R13. This is due to the modified geometry of the arches and suspension. However, such wheels not interchangeable with the classic Oka without modifications!
Tire compatibility table for Oka by model
In order not to make a mistake with the choice, we have compiled a table of acceptable sizes for different versions of Oka. Please note: some options require suspension modifications or rolling out the arches.
| Car model | Standard size | Valid Alternatives | Notes |
|---|---|---|---|
| VAZ-1111 (0.65 l) | 135/80 R12 | 145/70 R12, 155/70 R12 | 155/70 can hit when the steering wheel is turned completely |
| VAZ-11113 (0.75 l) | 135/80 R12 | 145/70 R12, 155/65 R13* | *Requires replacement of disks on R13 |
| SeAZ-11116 (Tavria body) | 155/80 R13 | 165/70 R13, 175/65 R13 | The arches are wider than the classic Oka |
| KamAZ-1111 (Oka-2, prototype) | 145/80 R12 | 155/70 R12 | Experimental model, few production copies |
Important: Tires of size 155/65 R13 and higher can be installed on a classic Oka only after rolling out the arches or using spacers. Otherwise, they will touch the fender liners when driving over uneven surfaces.
What happens if you install non-standard tires on Oka?
Many Oka owners try to install larger wheels to improve cross-country ability or appearance. However, such experiments are fraught with consequences:
- ⚠️ Increased suspension load — tires with a large diameter increase the weight of the unsprung masses, which leads to rapid wear of shock absorbers and wheel bearings.
- ⚠️ Distortion of speedometer readings — if the outer diameter of the wheel increases by 10%, the speedometer will lie by 5–7 km/h.
- ⚠️ Wheel alignment problems — non-standard tires can shift the rolling center, which leads to the car pulling to the side.
- ⚠️ Touching the body — even if the wheel falls into place, when the steering wheel is turned completely or on bumps, it can catch on the wheel arch liners.
⚠️ Attention: On the Oka River with a 0.65 l engine (VAZ-1111), installing tires wider than 145 mm without modifications leads to gearbox overload. The engine is already working at the limit, and increased rolling resistance can cause premature clutch wear.
However, some owners successfully install tires on the Oka 165/60 R13 or even 175/50 R13, but this requires:
- 🔧 Install spacers on the hubs (10–15 mm thick).
- 🔧 Roll out the arches (remove plastic fender liners or trim metal).
- 🔧 Reconfigure the wheel alignment taking into account the changed geometry.
What is arch rolling and why is it needed?
Rolling out arches is the process of increasing the space under the wheels by bending or cutting metal. On Oka, this is often done to install wider tires (for example, 165/60 R13). However, after such modification, the body becomes less rigid, and with strong impacts (for example, on potholes), corrosion may appear in the cut areas. An alternative is to use plastic arch extensions, but they look less aesthetically pleasing.
How to choose tires for Oka: summer vs winter
Due to its low weight and specific suspension, Oka places special demands on tires. Here's what to consider:
Summer tires
For the warm season it is better to choose tires with soft protector and shallow pattern. Optimal options:
- 🌞 Kama-205 (135/80 R12) - a budget domestic option with good wear resistance.
- 🌞 Nokian Nordman SX2 (145/70 R12) - Finnish quality, low noise level.
- 🌞 Michelin Energy Saver (155/70 R12) - a premium choice for those who value efficiency.
Winter tires
In winter, the Oka is especially capricious due to rear-wheel drive and light weight. We recommend:
- ❄️ Nokian Hakkapeliitta 7 (135/80 R12) - the best option for snow and ice.
- ❄️ Cordiant Snow Cross (145/70 R12) - a budget alternative with good grip properties.
- ❄️ Bridgestone Blizzak WS90 (155/70 R12) - for regions with severe winters.
⚠️ Attention: On the Oka prohibited use all-season tires! Due to the light weight of the car, they do not provide sufficient traction either in summer or winter. Summer tires harden in winter at −10°C, while winter tires wear out quickly in summer.
If you drive Oka in winter, be sure to check your tire pressure every 2 weeks. Due to the low weight of the vehicle, pressure drops faster than on heavy vehicles, which impairs handling.
Wheels for Oka: dimensions, offset and mounting
In addition to tires, Oka also installs wheels with clearly defined parameters:
- 🔧 Diameter: 12 or 13 inches (depending on tire size).
- 🔧 Width: 4.0J–5.0J (for 135–155 mm tires).
- 🔧 Departure (ET): +35…+40 mm.
- 🔧 Mount: 4×98 (VAZ standard).
- 🔧 Center Hole (DIA): 58.5 mm.
Standard steel wheels for Oka weigh about 5–6 kg, which is important for maintaining suspension balance. Installing heavy alloy wheels (8+ kg) can lead to:
- 🔴 Accelerated wear of wheel bearings.
- 🔴 Deterioration of acceleration dynamics (especially relevant for a 0.65 l engine).
- 🔴 Increased load on shock absorbers.
If you want to install R13 wheels, pay attention to spacers. They compensate for the changed offset and prevent wheel friction on the suspension. The optimal thickness of spacers for the transition from R12 to R13 is - 10–15 mm.
Make sure the bolt pattern is 4x98
Check offset (ET should be +35…+40)
Check the diameter of the central hole (58.5 mm)
View rim width (4.0J–5.0J for 135–155 mm tires)
Check the weight (no more than 7 kg for alloy wheels) -->
What tire size is best for off-road?
Oka has never been an SUV, but some owners adapt it for light off-road use. For this use:
- 🚜 155/80 R12 — the increased profile softens impacts on bumps.
- 🚜 165/70 R13 - wider contact area, better cross-country ability in mud.
- 🚜 175/65 R13 — the maximum possible size without major modifications.
For off-road use it is also recommended:
- 🔹Install mud tires (for example, Kumho Road Venture MT51 in size 155/80 R12).
- 🔹 Raise ground clearance using spacers for springs (up to +30 mm).
- 🔹 Strengthen the suspension (replace standard shock absorbers with stiffer ones).
⚠️ Attention: Installation of off-road tires on Oka with a 0.65 l engine highly not recommended. The engine simply won’t pull the heavy wheels, and the gearbox will work with overload. The best option is a 0.75-liter engine (VAZ-11113).
For off-road driving on the Oka, it is critical not only to increase the tire size, but also to strengthen the suspension. Standard shock absorbers and springs are not designed for long-term loads, which will lead to their rapid failure.
Where to buy tires for Oka and how much do they cost?
Due to the specific sizes (especially R12), tires for Oka are not always available in regular stores. Here's where you can find them:
- 🛒 Online stores: Kolesa-darom.ru, Shina.ru, BlackTyres — there are often rare sizes available to order.
- 🛒 Specialized service stations: Some Oka repair services sell tires and wheels on a turnkey basis.
- 🛒 Used markets: on Avito or Drome They often sell sets of tires with rims from disassembled Ok.
Average prices for new tires for Oka (2026):
- 💰 Budget: 2,500–3,500 RUR per piece (for example, Kama-205).
- 💰 Middle segment: 4,000–5,500 ₽ (for example, Nokian Nordman).
- 💰 Premium: 6,000–8,000 ₽ (for example, Michelin or Bridgestone).
If you are buying used tires, be sure to check:
- 🔍 Year of manufacture (on the side there is a marking in the form of 4 numbers, for example,
2022). - 🔍 Tread depth (for summer tires at least 3 mm, for winter tires - 5 mm).
- 🔍 No cracks on the sidewalls (especially important for old tires).
FAQ: Frequently asked questions about tires on Oka
Is it possible to install 165/60 R13 tires on Oka without modifications?
No, this size will not fit on a standard Oka. You will need to roll out the arches or use spacers 15–20 mm thick. Even after modifications, it is possible to hit the suspension when the steering wheel is turned completely.
What pressure should Oka tires have?
Recommended pressure:
- 🔹 Front wheels: 1.8–2.0 atm.
- 🔹 Rear wheels: 1.9–2.1 atm.
When fully loaded (4 passengers + luggage), the rear tire pressure can be increased to 2.2 atm.
Which is better: 135/80 R12 or 145/70 R12?
Depends on your priorities:
- 🔹 135/80 R12 - rides smoother, cheaper, less load on the suspension.
- 🔹 145/70 R12 — better grip, more modern appearance, but a little tougher.
Better for city and highway 145/70, for off-road and economy - 135/80.
Is it possible to install tires with R14 wheels on Oka?
Technically possible, but this will require:
- 🔧 Complete replacement of hubs (as standard ones do not fit R14).
- 🔧 Serious rolling of arches (up to 50 mm on each side).
- 🔧 Replacing shock absorbers and springs with extended ones.
Such modifications will cost more than the Oka itself, and therefore are not economically feasible.
What tires are installed on the Oka with an engine from Tavria (SeAZ-11116)?
On SeAZ-11116 with body Tavria tires are installed 155/80 R13. Also suitable:
- 🔹 165/70 R13 (no modifications).
- 🔹 175/65 R13 (arches need to be rolled out).
These sizes not compatible with classic Oka!