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What size wheels/tyres will fit to Superb III


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6 hours ago, Carlston said:

The standard 19" rim size on the Superb MK3 is 8Jx19 ET44. The outside edges of this rim size when fitted to the car is quite widely spaced.

 

By using  8.5Jx19 ET32 the outside edges of the rims will be spaced 36.7mm (almost 1.5 inches) further apart. This means that you could easily damage your rims on the kerbs when going through 2 metre width restrictions, as there's not always a lot of kerb clearance with standard wheels. Additionally, the 0.5" wider rims will mean that the tyres' sidewalls will bulge out less resulting in less rim protection.

 

In short, you're asking for kerbing problems if you drive through 2 metre width restrictions with raised kerbs having fitted wider rims with less offset on a car that already has a wide track.

Thanks, I'm aware of the difference to stock fitment - question is more about rubbing/scrubbing with the Audi fitment. The tyre itself also has a lot to do with rim protection - my other car has 235/40R18 Goodyear F1A5s on 18x8.5 wheels and they still have very generous rubber lip that protects it from the kerb.

Is the 2 metre width restriction a UK or Europe thing? Doesn't exist in Australia. 

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9 hours ago, FTTNope said:

Is the 2 metre width restriction a UK or Europe thing? Doesn't exist in Australia.

Yes and no; it exists due to "traffic calming width restrictors" in a few major cities and some car parks.

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  • 1 year later...
  • 2 weeks later...

The outside diameter of 255/30R20 is a bit small, compared to some other slightly oversize tyres such as 245/45R18, 245/40R19, and 245/35R20.

 

For example, 245/35R20 has an outside diameter 2.8% bigger than 255/30R20 and its radius is 9.25mm bigger.

 

245/35R20 fitted to 8J rims would give a lot more protection from kerbing damage and pothole damage than 255/30R20 fitted to 9J rims.

 

There's also a huge difference in ride comfort between the 255/30R20 fitted to a 9J rim and a 245/35R20 fitted to an 8J rim. To make the 245/35R20 fitted to the 8J rim ride as hard as the 255/30R20 fitted to the 9J rim you would have to overinflate this 245 tyre by about 8psi...and that's a big difference.

 

Although the 245/35R20 is a slightly narrower tyre than 255/30R20, it's XL load index is 95 (690kg), whereas the XL load index of 255/30R20 is only 92 (630kg). So this 245 can support almost 10% more weight (when inflated to the same tyre pressure) even though its narrower, or when supporting the same weight use consider less tyre pressure (about 0.2Bar/3psi) less tyre pressure. Together with the relatively narrower 8J rim and narrower contact width of this 245 tyre, it all adds up to a softer and more comfortable riding tyre...and I haven't even taken into account the stiffer sidewalls of the 30 aspect ratio tyre compared to the 35 aspect ratio tyre, which again would make the ride even worse. To add to the appalling hard ride, I doubt it would be long before the rims of the ridiculously low sidewalled 255/30R20 tyre would become buckled and/or damaged.

 

245/35R20 is a more common and cheaper tyre size than 255/30R20.

 

Outside diameter of tyres

245/45R18 677.7mm

245/40R19 678.6mm

245/35R20 679.5mm

255/30R20 661mm

 

ETRTO approved rim widths

45 Series

245/45 7.5-8.0-9.0

40 Series
245/40 8.0-8.5-9.5

35 Series

245/35 8.0-8.5-9.5

30 Series
255/30 8.5-9.0-9.5

 

"skoda eshop cz" are listing many 20" Skoda rims including 8Jx20 ET41 from the Kodiaq

Kolo z lehké slitiny XTREME 20" pro KODIAQ

https://eshop.skoda-auto.cz/cs_CZ/hlinikove-disky/c/alloyWheels?q=%3ApriceAsc%3ArimDiameter%3A20%22&page=1

 

Edited by Carlston
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How much tyre pressure you would have to overinflate the following tyres by to feel the same hardness as the ridiculously hard riding 255/30R20 tyre

245/45R18 +15psi soft ride when fitted to 8J rim

245/40R19 +12psi soft to medium ride when fitted to 8J rim

245/35R20 +8psi medium ride when fitted to 8J rim

255/30R20 hard ride when fitted to 9J rim

 

Most people would agree, that the 245/45R18 is a very comfortable tyre size due to its relatively high sidewalls. After all, 245/45R18 has a similar sidewall height to 225/50R17 and 205/55R16.

 

You can see from the above chart that 245/40R19 only has a modest drop in comfort compared to 245/45R19.

 

If the 255/30R20 was fitted to a narrower 8.5J rim, the difference in ride comfort between these four tyre sizes would be a little closer, but doesn't change the order 

245/45R18 +13psi soft ride when fitted to 8J rim

245/40R19 +10psi soft to medium ride when fitted to 8J rim

245/35R20 +6psi medium ride when fitted to 8J rim

255/30R20 hard ride when fitted to 8.5J rim

 

What many might find surprising, is just how much better the ride is of a 245/35R20 compared to a 255/30R20. The ride of a 245/35R20 is roughly in the middle of the soft riding 245/45R18 and the hard riding 255/30R20.

 

Just by looking at the 255/30R20 and 245/35R20 the difference in ride comfort isn't obvious. It's only when you look at the numbers that things become clear. Sometime a little difference can make a really big difference.

 

The above should also explain why Skoda would never fit 255/30R20 tyres to a Superb, because they would have too many unhappy customers.

 

Edited by Carlston
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  • 3 months later...
On 22/02/2021 at 09:32, TimothyT said:

I saw quite a few good fitments here at 8.5" with ET35, I am looking at Japan Racing SL01's and they are available in ET32 and ET45. As the stock wheels run ET44 and do not have a good fitment, I would be aiming to go for ET32. Does anyone have a set that they run with ET32 rather than 35? Thinking of how big the difference would be in terms of visual and suspension clearance (if lowered also).

 

Hey Timothy,

Did you pick up a set of the JR SL01's, what fitment did you go for in the end of you did and how are you liking them?

Ta

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  • 2 months later...
On 11/03/2020 at 13:32, MartiniB said:

i used https://tiresize.com/comparison/  to calculate

not listed 225/55/r17 will be better than stock 215/55/r17

pros:
+ 10mm wider
+ 5mm higher
+ closer values to real speed on the speedometer

 

there are sizes which have been met on different Superb III models

2.0TSI	217hp	Diameter
215/55r17 -	26.3"	0%	****
235/45r18 -	26.3"	0%
235/40r19 -	26.4"	+0.4%
255/35r19 -	26.0"	-1.1%
245/35r20 -	26.8"	+1.9%
2.0TSI	276hp 4x4
255/30r20 -	26.0"	-1.1%
1.4TSI	123hp
215/60r16 -	26.2"	-0.4%
1.4TSI	148hp ACT
215/50r18 -	26.5"	+0.8%
1.8TSI	177hp
235/50r17 -	26.3"	0%
2.0TDI	188hp
235/35r20 -	26.5"	+0.8%

 

and there are sizes which also fits well

225/55r17 -	26.7"	+1.5%
235/50r17 -	26.3"	0%
240/45r18 -	26.5"	+0.8%
245/45r18 -	26.7"	+1.5%
245/40r19 -	26.7"	+1.5%

 

Just to double check with you - you had no problems fitting 17" on your MY23 280PS? I am leaning towards 17" for winter as well, but need to make 100% sure they will fit over brake discs/calipers...

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3 hours ago, lmb said:

Just to double check with you - you had no problems fitting 17" on your MY23 280PS? I am leaning towards 17" for winter as well, but need to make 100% sure they will fit over brake discs/calipers...

 

Skoda doesn't approve any rims bigger than 17" for the fitment of snow chains to the Superb MK3. Skoda only approves 6.5Jx16 ET41 with 215/60R16 and 6.5Jx17 ET41 with 215/55R17 for the fitment of snow chains. The details are in the owner's manual.

 

Therefore, if a 280PS needed rims bigger than 17" to clear the front brake calipers, no one with that car could go on a skiing holiday to the Alps...as I've heard snow chains are compulsory to get to the slopes.

 

The Superb MK3 can be fitted with 16" rims on all models except the 272HP/280HP 4x4 models, which need at least 17".

 

Edited by Carlston
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48 minutes ago, Carlston said:

 

Skoda doesn't approve any rims bigger than 17" for the fitment of snow chains to the Superb MK3. Skoda only approves 6.5Jx16 ET41 with 215/60R16 and 6.5Jx17 ET41 with 215/55R17 for the fitment of snow chains. The details are in the owner's manual.

 

Therefore, if a 280PS needed rims bigger than 17" to clear the front brake calipers, no one with that car could go on a skiing holiday to the Alps...as I've heard snow chains are compulsory to get to the slopes.

 

The Superb MK3 can be fitted with 16" rims on all models except the 272HP/280HP 4x4 models, which need at least 17".

 

tyres.JPG.29b9683df27e59705876a34564ed825e.JPG

Also, if I remeber correctly you are not required to use snow chains if you have winter tyres. I may be wrong on this one thou.

 

I do not mind 6.5J on winter tyres , as there will be more rubber to protect rims. Summer wheels are 7.0Jx17 ET40, so 1mm offset per side is nothing.

 

Only frustrating thing is that Skoda does not mention anywhere in their User's Manual what wheel size I can use with 206kW and I have to seek help on such a "silly" thing on the forum.

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2 hours ago, lmb said:

Also, if I remember correctly you are not required to use snow chains if you have winter tyres. I may be wrong on this one thou.

 

Only frustrating thing is that Skoda does not mention anywhere in their User's Manual what wheel size I can use with 206kW and I have to seek help on such a "silly" thing on the forum.

 

Snow chains aren't an alternative to winter tyres, they are in addition. In many European countries it's compulsory to fit winter rated tyres in the winter. If there was a road sign in the Alps saying that snow chains were compulsory along that section of road, saying to a policeman that you were exempt because you had winter tyres on would not cut the mustard.

 

Your Skoda approved tyre and rim sizes will be on the CoC (Certificate of Conformity), not in the owner's manual. The Skoda approved tyre sizes might also be on the inside of the fuel filler flap.

 

Edited by Carlston
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10 minutes ago, Carlston said:

 

Snow chains aren't an alternative to winter tyres, they are in addition. In many European countries it's compulsory to fit winter rated tyres in the winter. If there was a road sign in the Alps saying that snow chains were compulsory along that section of road, saying to a policeman that you were exempt because you had winter tyres on would not cut the mustard.

 

Your Skoda approved tyre and rim sizes will be on the CoC (Certificate of Conformity), not in the owner's manual. The Skoda approved tyre sizes might also be on the inside of the fuel filler flap.

 

As per this article, https://www.service-public.fr/particuliers/actualites/A14389?lang=en - well, it is not so clear. It says either winter tires or chains. Similar here (see the sign with chains but with a text below - it allows winter tyres) https://www.eurocampings.co.uk/blog/listing/regulations-winter-tyres-in-italy-and-france/

 

 

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That is France & Italy then, if that matters to those going there. You need to look at other EU / European countries though if you are going to them.

Plenty threads on that subject in Briskoda regarding Chains and the requirement to carry chains, and if you need to carry them then you need to be able to fit them if the Notices posted tell you to. 

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39 minutes ago, moris said:

Hi, 

 

Is it ok to use for the winter 215/60 R17,  instead of 215/55 R17 ? 

What about snow chains ? 

 

Do you have such experience ?

 

Cheers

George

 

On the Superb MK3 you could use 215/60R17 instead of 215/55R17.

 

However, it will increase the gearing slightly...and you should check that your speedo doesn't under-read after fitting using GPS.

 

As you can see in the chart below, changing from 215/55R17 to 215/60R17 increases the gearing by 3.2%.

 

I suspect you could fit snow chains to 215/60R17 fitted to 6.5Jx17 ET41 rims (not the wider 7Jx17 ET40 rims) because rubbing usually occurs on the sides, and snow chains fitted to 215/60R16 on 6.5Jx16 ET41 and 215/55R17 on 6.5Jx17 ET41 are approved by Skoda. Check the Superb MK3 owner's manual for full details on snow chains.

 

Outside diameter of tyre

215/55R17 668.3mm

215/60R17 689.8mm (+3.2%)

 

My opinion on the car insurance issue when making small changes to the tyre size (others views may differ)

Because 215/60R17 doesn't increase the car's performance and is an insignificant change compared to 215/55R17 it shouldn't affect your insurance. If you phone up your insurance company to check the office clerk on the end of phone won't have a clue what you're talking about so they will ask their boss. Their boss won't have a clue either, so they might double your insurance premiums. If you don't inform your insurance company you won't be charged any extra, and the insurance company won't be able to wriggle out of any future claims because you won't have made a significant modification to your car. To back this opinion up, my own insurance company has said that a change in tyre size can be made if it doesn't increase the performance of the car, and one size different from standard is never a problem. I expect my insurance company was simply reflecting UK law and how UK judges would deal with this situation. Individual insurance companies can't change UK law and make it up as they go along, and deny you insurance cover on a whim simply because of an insignificant change.

 

Edited by Carlston
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7 minutes ago, Carlston said:

Everything very informative and useful. 

 

 

Thank you, on every point, speedo/100kmh <> 103.2kmh/, chains, ins.

 

Yes, I am considering 6.5Jx17 ET41 with 215/60R17 . Tyre choice is little bit narrow, mostly SUV/VANs, for the moment is Dunlop Sport 5 Suv.

Our Superb have road protection and with little bit bigger tyres will look very nice ;)

 

Is it possible with that size , to get comfort, safe and stable ride, as well? 

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1 hour ago, moris said:

 

Thank you, on every point, speedo/100kmh <> 103.2kmh/, chains, ins.

 

Yes, I am considering 6.5Jx17 ET41 with 215/60R17 . Tyre choice is little bit narrow, mostly SUV/VANs, for the moment is Dunlop Sport 5 Suv.

Our Superb have road protection and with little bit bigger tyres will look very nice ;)

 

Is it possible with that size , to get comfort, safe and stable ride, as well? 

 

When on standard tyre sizes, the speedo usually over-reads. So when the speedo shows 100km/h the actual road speed might only be 97km/h.

 

Fitting 215/60R17 might mean that when the speedo shows 100km/h the actual road speed might also be 100km/h. So by fitting a slightly oversize tyre you might find that the speedo becomes more accurate, not less accurate.

 

It's best to check using GPS.

 

215/60R17 should be slightly more comfortable than 215/55R17.

 

215/60R17 will increase the car's ride height by about 10mm compared to 215/55R17, which should help in deep snow as the car won't be having to push as much snow out of the way.

 

Although 215/60R17 has slightly more sidewall height than 215/55R17, it is still a high performance tyre.

 

An alternative to 215/60R17 is 215/65R16. Now 215/60R17 is a lower profile tyre than 215/65R16, so should have slightly better cornering performance.

 

A lot will depend on the tyres that you choose. Good tyres equals good performance.

 

Have you considered all-season tyres, such as the very latest Continental AllSeasonContact 2. Although the performance might not be quite as good as winter tyres below 0 degrees Centigrade, the performance above 0 degrees Centigrade such as cold rain may be better. Bear in mind that all-season tyres have the 3PMSF symbol, so are officially winter rated...and good all-season tyres have performance in cold weather (below about 7 degrees Centigrade) that is much closer to the performance of a winter tyre than a summer tyre.

 

Continental AllSeasonContact 2 215/60R17 96H (3PMSF) (all-season tyre)

 

Profil_allseasoncontact_2.jpg

https://www.mytyres.co.uk/product/Continental/60/17/D-127977

 

If you're looking for cheap rims, 6.5Jx17 ET38 5/112 57.1 steel rims (from Kodiaq) could be used instead of the 6.5Jx17 ET41 5/112 57.1 (from Superb MK3). The 3mm reduced offset will move the centre of the tyre 3mm further out in the wheelarch, giving a slightly more sporty look...and 3mm isn't a significant difference IMHO. Alloy rims from the Kodiaq are also available in 6.5Jx17 ET38 5/112 57.1

 

Alcar 9021 6.5Jx17 ET38 5/112 57.1 (from Kodiaq)

Alcar KFZ 9021

https://www.oponeo.de/stahlfelge/alcar-kfz-9021#23379156

 

Edited by Carlston
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Another option could be 205/65R16 fitted to 6.5Jx16 ET33 5/112 57.1 rims (from VW Tiguan MK1).

 

One benefit of the 205/65R16 fitted to a 6.5J rim, is that it should fit flush in the spare wheel well without raising the carpet. This is because a 205/65R16 tyre fitted to a 6.5J rim has an actual inflated width of about 215mm. 215mm is about the widest tyre that you can fit in the spare wheel well on the Superb MK3 without raising the carpet. Note that the actual inflated width of a tyre always depends on the width of the rim to which it is fitted. For example, if you were to fit a 205/65R16 to a narrower 6J rim the actual inflated tyre width would be about 6mm less, ie. 209mm vs 215mm.

 

Bridgestone Blizzak LM005 205/65R16 95H (3PMSF) (winter tyre)

https://www.camskill.co.uk/m96b0s8654p197748/Bridgestone_Tyres_Winter_Snow_Car_Bridgestone_Blizzak_LM005_205_65_R16_95H_TL_Fuel_Eff_%3A_C_Wet_Grip%3A_A_NoiseClass%3A_B_Noise%3A_71dB

 

Hankook Kinergy H750 205/65R16 95H (3PMSF) (all-season tyre)

https://www.mytyres.co.uk/rshop/tyre/Hankook/Kinergy-4S-H750/205-65-R16-95H-4PR-SBL/R-437681

 

Alcar 9922 6.5Jx16 ET33 5/112 57.1 steel rim (from VW Tiguan MK1)

Alcar KFZ 9922

https://www.oponeo.pl/felga-stalowa/alcar-kfz-9922#23490674

Edited by Carlston
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What are validated ET values for 8.5J x 19 rims? According to the calculator if I would want to keep the same distance from the suspension as with 8J x 19 ET44, the recommended ET for 8.5Jx19 would be ET38. How much lower ET values can I go without sacrificing anything and being inside law restrictions?

etva.png

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  • 2 months later...

Hi guys,

I am a 3V owner since new, now I am about 110.000 km. I bought the car with 215/55-17 set-up and I love big tires.

So, did anyone tried the 245/40 20" tires on the 3V Superb? As I see they fit maximum 245/35 20" with 680 mm diameter and the 245/40 20" is 704 mm in diameter. Overall it is 24 mm, but at the wheelwell will be at half, 12 mm more, right?

I would love to have the 245/40 20" tires but don't want issues as rubbering. I don't mind the speedo or the odo. Car is completly stock and runs great.

Already bought 20" rims with 8.5J width and ET38.

Can someone helping me with this issue?

Thank you and best regards,

Uncle Sly

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On 18/09/2023 at 16:02, overload said:

What are validated ET values for 8.5J x 19 rims? According to the calculator if I would want to keep the same distance from the suspension as with 8J x 19 ET44, the recommended ET for 8.5Jx19 would be ET38. How much lower ET values can I go without sacrificing anything and being inside law restrictions?

etva.png

This is exactly the setup I went with on my new rims.  Still could have gone a little more aggressive, around the ET35-ET33 mark, but as I tow a jetski I didn't want rubbing issues (I'm on Eibachs) on the rears so stuck with the above.  I might look at putting some 5mm spacers on the fronts.

New wheels.jpg

Edited by Donweather
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  • 1 month later...

Hey guys, a friend of mine have wonderful 18” 8J OZ wheels for me but with ET38 and inner hub 66.

Do you think I can use them as a winter set? ❄️
 

I will need hub adapters from 66 to 57.1 but what I have doubts for is the ET they have. Skoda recommends ET 43-46 for Superb 3 Scout.. 🤔

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17 hours ago, fr1nklyn said:

Hey guys, a friend of mine have wonderful 18” 8J OZ wheels for me but with ET38 and inner hub 66.

Do you think I can use them as a winter set? ❄️
 

I will need hub adapters from 66 to 57.1 but what I have doubts for is the ET they have. Skoda recommends ET 43-46 for Superb 3 Scout.. 🤔


No doubts there, that's an easy fit.

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