Hello all,

 

It's time for a new set of tyres on my octavia 4x4, it's currently shod in a set of 205 60 15 road tyres but I would like to put some all terrain type tyres on it, I can't find anything like I'm looking for in 205 60 15 or 205 65 15, but have found them in 205 70 15, these for example: https://www.mytyres.co.uk/rshop/tyre/Cooper/Discoverer-AT3-Sport-2/205-70-R15-96T/R-420429

 

I've been through a tyre size calculator and the difference is approximately 40mm in diameter, 20mm radius and +6.5% in gearing.

Having had a good look under the circle whilst at full lock etc it seems the 205 70 15s will fit without rubbing anywhere.

 

Just wondering if anyone has done this and what the results were like - did they fit well and was the gearing all to **** (I'm aware the speedo will be off but can adjust for that).

 

Thanks in advance!

5 hours ago, Octy-4x4 said:

Hello all,

 

It's time for a new set of tyres on my octavia 4x4, it's currently shod in a set of 205 60 15 road tyres but I would like to put some all terrain type tyres on it, I can't find anything like I'm looking for in 205 60 15 or 205 65 15, but have found them in 205 70 15, these for example: https://www.mytyres.co.uk/rshop/tyre/Cooper/Discoverer-AT3-Sport-2/205-70-R15-96T/R-420429

 

I've been through a tyre size calculator and the difference is approximately 40mm in diameter, 20mm radius and +6.5% in gearing.

Having had a good look under the circle whilst at full lock etc it seems the 205 70 15s will fit without rubbing anywhere.

 

Just wondering if anyone has done this and what the results were like - did they fit well and was the gearing all to **** (I'm aware the speedo will be off but can adjust for that).

 

Thanks in advance!

 

205/60R15 has a smaller outside diameter than the standard Octavia MK2 tyre sizes.

 

Try comparing 205/70R15 and 195/65R15. 5.3% percentage difference in outside diameter and 16.75mm difference in radius.

 

Are you going to use a 6Jx15 ET47 5/112 57.1 rim?

 

Also take a look at this tyre.

 

Yokohama Geolandar AT G015 205/70R15 96H (Euro label E C 70dB)

https://www.camskill.co.uk/m53b0s2481p148166/Yokohama_Tyres_Car_Yokohama_Geolandar_AT_G015_205_70_R15_96H_RPB_TL_Fuel_Eff_%3A_E_Wet_Grip%3A_C_NoiseClass%3A_B_Noise%3A_70dB

 

Edited 23 September, 20232 yr by Carlston

Hadn’t realised that as an online look up had showed the 205 60 15 as standard. Thanks for the info!

looks like the 205 70 15s will fit & 5~ish% gear up should be ok.

I’ll be putting them on my standard 15” alloys, not sure of the offset, but am staying withe the same width as I have now (205), so should be fine.

On 23/09/2023 at 23:56, Octy-4x4 said:

Hadn’t realised that as an online look up had showed the 205 60 15 as standard. Thanks for the info!

looks like the 205 70 15s will fit & 5~ish% gear up should be ok.

I’ll be putting them on my standard 15” alloys, not sure of the offset, but am staying withe the same width as I have now (205), so should be fine.

 

I've had a look at the Skoda parts catalogue, and it lists a 6.5Jx15 ET50 alloy rim. Maybe 205/60R15 was a standard fitment after all.

 

6.5Jx15 ET50 5/112 57.1 alloy rim 1Z0601025S 7ZS

 

Skoda parts catalogue

https://www.lllparts.co.uk/catalogs/skoda/CZ/OCT/663/6/601/601050

What sort of cost is postage and fitting these days Camskill are a bit shy until you order . Quite keen now you’ve mentioned it 👍

On 23/09/2023 at 23:56, Octy-4x4 said:

Hadn’t realised that as an online look up had showed the 205 60 15 as standard. Thanks for the info!

looks like the 205 70 15s will fit & 5~ish% gear up should be ok.

I’ll be putting them on my standard 15” alloys, not sure of the offset, but am staying withe the same width as I have now (205), so should be fine.

I've used winters with approx. 4.8% gearing increase over standard  - they were fine, gear ratio-wise, and the speedo reads damn near exact according to GPS. 

1 hour ago, cheshire_cat said:

What sort of cost is postage and fitting these days Camskill are a bit shy until you order . Quite keen now you’ve mentioned it 👍

 

On camskill, if you add a tyre to the basket and click the basket, it tells you the postage.

 

It looks like it's £5.75/tyre with a minimum postage of £11.50.

 

So if you order at least two tyres, it works out at £5.75 each tyre for postage.

 

Edited 29 September, 20232 yr by Carlston

The 205 70 15s fit very well, these are Cooper AT3s. The gearing is noticeably higher but not excessively so.

The ride has improved and there is about 20 to 25mm more ground clearance which is useful for some of the places I go, and park.