just wondering if anyone has fit 19 inch vrs alloys on a standard skoda octavia iv se technology that originally has 16 inch alloys

also any recommended tire sizes that will make it compatible?

 

I'd imagine the vrs set up will be ok. I think most people want to go smaller with the state of our roads at the minute! 

This is most recent Skoda wheel brochure I can find

The Octavia mk 3 is (Roman) III, mk 4 is IV (don't confuse with iV)

 

https://www.skoda.co.uk/_doc/639a0118-4da5-446b-a786-86e1f789b57b
 

Generally want smallest rim size unless your local roads are maintained like surface of a billiard table with no ripples and holes.  
 

 

20 hours ago, Hxider said:

just wondering if anyone has fit 19 inch vrs alloys on a standard skoda octavia iv se technology that originally has 16 inch alloys

also any recommended tire sizes that will make it compatible?

 

On the Octavia MK4, the standard 16" tyre size is 205/60R16.

 

One non-standard option could be 225/50R17 on 7Jx17 ET45 rims from the Karoq.

 

225/50R17 are generally a cheaper tyre size than the lower profile 225/45R18 and 225/40R19 tyre sizes and you get more comfort, more resistance to kerbing damage, more resistance to pothole damage, and still get a big increase in cornering perfomance compared to the rather narrrow 205/60R16 tyre size.

 

Another advantage of 17" rims over 18" and 19" rims is the much reduced weight of the rims. 17" alloy rims might weigh around 10kg each, whereas 19" alloy rims might weigh close to 15kg each. So that's around 20kg less unsprung weight which has a handling advantage as the suspension responds quicker to bumps in the road. Yet another advantage of the smaller and lighter rims is an increase in acceleration and an improvement in mpg.

 

Skoda Karoq 7Jx17 ET45 5/112 57.1 alloy rim

https://eshop.skoda-auto.cz/cs_CZ/kolo-z-lehke-slitiny-ratikon-17-pro-karoq/p/57A071497C+8Z8

https://eshop.skoda-auto.cz/cs_CZ/kolo-z-lehke-slitiny-ratikon-17-pro-karoq/p/57A071497D+FL8

 

Edited 25 March, 20233 yr by Carlston

The alloys which I have bought are the Altair and they already have tyres on them 

Altair 

Tyre: 225/40 R19

Rim: 7 5J × 19" ET48

the original 16 inch alloys are the twister alloys 

 

Tyre: 205/60 R16

Rim: 7.OJ × 16" ET46

generally what I’ve read from the previous response is the Speedo would show less then the actual speed I am travelling at

5 hours ago, SurreyJohn said:

This is most recent Skoda wheel brochure I can find

The Octavia mk 3 is (Roman) III, mk 4 is IV (don't confuse with iV)

 

https://www.skoda.co.uk/_doc/639a0118-4da5-446b-a786-86e1f789b57b
 

Generally want smallest rim size unless your local roads are maintained like surface of a billiard table with no ripples and holes.  
 

 

Thankyou!

17 minutes ago, Hxider said:

The alloys which I have bought are the Altair and they already have tyres on them 

Altair 

Tyre: 225/40R19

Rim: 7.5J×19 ET48

the original 16 inch alloys are the twister alloys 

 

Tyre: 205/60 R16

Rim: 7J×16 ET46

generally what I’ve read from the previous response is the Speedo would show less then the actual speed I am travelling at

 

 

On standard tyres, car speedos always over-read because it's illegal for a car speedo to under-read.

 

When driving at an indicated 50mph, the car's actual speed might only be 47mph to 48mph.

 

The Twister alloy rims have a specification of 7Jx16 ET46, and are normally fitted with 205/60R16 tyres on the Octavia MK4.

 

However, being 7J in width, the Twister alloys would be an ideal candidate for non-standard 225/55R16 tyres.

 

The Mercedes C-Class uses similar outside diameter tyres to the Octavia MK4, such as 195/65R16, 205/60R16, 225/55R16, 225/50R17. These seem to be the most common tyre sizes on the Mercedes C-Class rather than the lower profile 225/45R18 and 225/40R19. The Mercedes isn't a cheap car, so if it was a good ideal to fit the 45 and 40 aspect ratio tyres, I'm sure most Mercedes C-Class cars would be running about on them...but they're not.

 

Edited 25 March, 20233 yr by Carlston

.

Edited 28 March, 20233 yr by crisdevis

As I know VRS models accept 18" and 19". Otherwise 16", 17" and 18" fit Octavia IV.

If I have done my sums right

 

Twister 7J with 205/60 R16 tyres is diameter 652mm

Altair 7.5J with 225/40 R19 tyres is diameter 663mm

 

difference 1.5% or about 1.1mph on speedo at 70mph

adding 11mm to diameter increases ground clearance by 5.5mm

 

 

 

9 hours ago, crisdevis said:

As I know VRS models accept 18" and 19". Otherwise 16", 17" and 18" fit Octavia IV.

 

To use snow chains on the VRS, you would need to use 17" rims.

 

205/55R17 tyres fitted to 6.5Jx17 ET46 rims is one of the approved sizes for use with snow chains on the Octavia MK4, as shown in the Skoda owner's manual.

 

wheel-size.com also shows a 17" tyre option for the VRS.

 

Edited 28 March, 20233 yr by Carlston