Tyre size question

[Tezaman]

For Stock 18" rims , skoda tells us to use  215/50R18    7Jx18 ET45 
 

i want to use a wheel that is 8jx18 ET45  will i got problem if i use the 215/50R18   tyre , or it will be streched out !? 

 

So 8jx18 ET45  with 215/50R18

 

and the second question is  .if i use 225 will i see significant change in consumption ?

Edited 8 March, 2020 by Tezaman

[BoxerBoy]

Any rim will take a variety of tyre widths.  There’s an optimum width along the way.

 

215 to 225 is unlikely to make a significant change to consumption. 

Edited 8 March, 2020 by BoxerBoy

[KenONeill]

@Tezaman - Well, a 215 or 225 width tyre is within the recommended range for an 8 inch width wheel. I refuse to give any advice on inset-offset numbers though.

 

As to any effect on fuel economy, that will depend partly on the make and model of both the tyres you presently have, and the ones you intend fitting.

[Luckypants]

Which 'stock' 18" rims? My 2.0 TDi SE-L came on 18" rims with 225/50 Bridgestones from Skoda. This is the recommended size for my car........

[Tezaman]

ok , they are just fine 

8.0-215-50-R18-GoodYear Asymmetric 

Edited 9 March, 2020 by Tezaman

[gSvrs]

On 09/03/2020 at 10:22, Luckypants said:

Which 'stock' 18" rims? My 2.0 TDi SE-L came on 18" rims with 225/50 Bridgestones from Skoda. This is the recommended size for my car........

yes mine did too

[gSvrs]

how long tyres last on a 4x4 18 225/50 

tdi 2.0 

[Cd1yat]

On 27/05/2020 at 23:46, gSvrs said:

how long tyres last on a 4x4 18 225/50 

tdi 2.0 

I've just booked in to change all 4 this week after 2 years and 30,000 miles. Booked for Michelin Primacy 3 to replace the Turanzas. VWFS choice rather than mine but happy to try a change 

Edited 8 June, 2020 by Cd1yat

[gSvrs]

On 08/06/2020 at 22:34, Cd1yat said:

I've just booked in to change all 4 this week after 2 years and 30,000 miles. Booked for Michelin Primacy 3 to replace the Turanzas. VWFS choice rather than mine but happy to try a change 

my front are at 3.5 n/s/f 4.0 o/s/f 

5.0 n/s/r and  5.0 o/s/r 

bridgestone 

standard tyres from new 02/09/2019

new reg 69 

at 10800 miles 

[Cd1yat]

21 hours ago, gSvrs said:

my front are at 3.5 n/s/f 4.0 o/s/f 

5.0 n/s/r and  5.0 o/s/r 

bridgestone 

standard tyres from new 02/09/2019

new reg 69 

at 10800 miles 

30,000 and all are between 1.6 and 1.8mm. Definitely time for a change...

[Carlston]

On 08/03/2020 at 15:59, Tezaman said:

I want to use a wheel that is 8jx18 ET45  will i get a problem if I use the 215/50R18 tyre , or it will be stretched out? 

 

Yes, the sidewalls on a 215/50R18 tyre are too stretched out on an 8J rim. It's better to fit a 215/50 tyre to a 7J rim or even a 6.5J rim. Fitting a 215/50 tyre to an 8J rim will leave your alloy rims very exposed to kerbing damage and give a hard ride as the sidewalls will be too stretched out.

 

With an 8J rim you can fit a 245/45R18 tyre, but this might be too wide for the Karoq.

 

On wheel-size.com they list a 235/40R19 tyre on an 8Jx19 ET45 rim as fitting a 4x4 version of the Karoq. On non-4x4 versions, nothing wider than a 215/50R18 tyre fitted to a 7jx18 ET45 rim is mentioned. Do bear in mind that wheel-size.com often has errors, so do check with other sources of information.

Edited 10 June, 2020 by Carlston

[Shahoff]

I am using 235/50/R18  on 8J alloys even on Dropped machine.  215  are to small for our car IMHO

 

[Shahoff]

On 10/06/2020 at 21:09, Carlston said:

 

Yes, the sidewalls on a 215/50R18 tyre are too stretched out on an 8J rim. It's better to fit a 215/50 tyre to a 7J rim or even a 6.5J rim. Fitting a 215/50 tyre to an 8J rim will leave your alloy rims very exposed to kerbing damage and give a hard ride as the sidewalls will be too stretched out.

 

With an 8J rim you can fit a 245/45R18 tyre, but this might be too wide for the Karoq.

 

On wheel-size.com they list a 235/40R19 tyre on an 8Jx19 ET45 rim as fitting a 4x4 version of the Karoq. On non-4x4 versions, nothing wider than a 215/50R18 tyre fitted to a 7jx18 ET45 rim is mentioned. Do bear in mind that wheel-size.com often has errors, so do check with other sources of information.

 

245 fits perfect as well, but better on 8.5J.  235 is ideal for 8J