We have a Yeti SE that unfortunately came on 17" wheels and 225mm wide tyres. (Bought it because it was available and avoided a long wait and had the general spec we wanted but no off-road button).

1. With some snow now falling, I just wondered if someone on the forum with this same spec of wheel/tyre can comment on performance in the snow.

2. If found to be poor - what have you changed - winter tyres on the 17" and changing each year or 16" wheels (however even changing the profile the odometer would still be slightly inaccurate)?

We have a Yeti SE that unfortunately came on 17" wheels and 225mm wide tyres. (Bought it because it was available and avoided a long wait and had the general spec we wanted but no off-road button).

1. With some snow now falling, I just wondered if someone on the forum with this same spec of wheel/tyre can comment on performance in the snow.

2. If found to be poor - what have you changed - winter tyres on the 17" and changing each year or 16" wheels (however even changing the profile the odometer would still be slightly inaccurate)?

Firstly, what tyres were factory fitted to your sm? I get the feeling that the Dunlops are the best for snow work but I haven't directly compared the three different ones tbh.

I changed to 16" steel wheels running 205/55/16 snow tech 2 tyres (made by continental, similar too but cheaper than the wintercontacts). Having taken it to the Swiss alps two weeks ago I would say that the car is amazingly capable on winter tyres, even in 12 inches of snow!

Due to the tyres overall slightly smaller diameter now, the speedo reading is slightly out (as I expected) and the gearing in slightly lower. Cruising at 3,000 revs it was doing an indicated 85mph on the 17 inch alloys and now it does an indicated 81mph at 3,000 revs.

Edited 9 November, 201015 yr by FocusZtec

Firstly, what tyres were factory fitted to your sm? I get the feeling that the Dunlops are the best for snow work but I haven't directly compared the three different ones tbh.

I changed to 16" steel wheels running 205/55/16 snow tech 2 tyres (made by continental, similar too but cheaper than the ). Having taken it to the Swiss alps two weeks ago I would say that the car is amazingly capable on winter tyres, even in 12 inches of snow!

Due to the tyres overall slightly smaller diameter now, the speedo reading is slightly out (as I expected) and the gearing in slightly lower. Cruising at 3,000 revs it was doing an indicated 85mph on the 17 inch alloys and now it does an indicated 81mph at 3,000 revs.

Our tyres are Dunlops but are obviously summer type! I just wondered if anyone has found how they perform in snow, although I realise that winter tyres would be the best option!

Your mileometer will also be out with regard to recorded miles.

Our tyres are Dunlops but are obviously summer type! I just wondered if anyone has found how they perform in snow, although I realise that winter tyres would be the best option!

Your mileometer will also be out with regard to recorded miles.

The odometer will of course be out due to the different gearing but they are the approved size so everything is within the correct tolerances. :yes:

I've used the dunlops in mud and negotiating rocky situations on mountain roads and they were fine but for snow I wanted proper winter tyres. As the temperatures are now dropping to sub 7 degrees the winter tyres hold all round advantages in my mind, irrelevant as to whether the roads are covered in snow.

The odometer will of course be out due to the different gearing but they are the approved size so everything is within the correct tolerances. :yes:

I've used the dunlops in mud and negotiating rocky situations on mountain roads and they were fine but for snow I wanted proper winter tyres. As the temperatures are now dropping to sub 7 degrees the winter tyres hold all round advantages in my mind, irrelevant as to whether the roads are covered in snow.

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I had heard that the tyres on mine should be fair in mud and snow but obviously not as good as winter ones. It is encouraging to hear from someone first hand!

The odometer will of course be out due to the different gearing but they are the approved size so everything is within the correct tolerances. :yes:

I've used the dunlops in mud and negotiating rocky situations on mountain roads and they were fine but for snow I wanted proper winter tyres. As the temperatures are now dropping to sub 7 degrees the winter tyres hold all round advantages in my mind, irrelevant as to whether the roads are covered in snow.

So are you saying that on cars with oem 16" wheels their speedos and odometers read the same as yours when you are on your16" wheels?

So are you saying that on cars with oem 16" wheels their speedos and odometers read the same as yours when you are on your16" wheels?

Hi survey,

no the car is programmed with the wheel size fitted at factory so they run with the set tolerances for that tyre size. Therefore changing to a differant tyre size will effect the speedo, however as Focus states as long as you fit tyre sizes recommended by the manufacture for that model/spec, then there should be no problem.

Regards,

TP

So are you saying that on cars with oem 16" wheels their speedos and odometers read the same as yours when you are on your16" wheels?

Not speaking from a position of authority here but if you refer to one of the online tyre size calculators (there's a link to one on here somewhere) you'll see, as I have mentioned on other tyre threads, that the 205 55 16 size is about 5 percentage points out as compared to the standard Skoda 205 60 16 size ("E" and "S" spec) - which is, understandably, within a whisker of the other standard Skoda size...225 50 17 on "SE" and "Elegance" models.

Edited 9 November, 201015 yr by oldstan

The other option is to could swap your Dunlops for winter tyres of the same size (225/50/17). I'll be doing this in 3 weeks, mainly because my Yeti's a lease.

This might be handy:

http://www.etyres.co.uk/tyre-size-calculator.htm

I have replaced my 225/50/17s for 215/60/16s and the result in rolling radius is +1%. Tyre profile makes quite a difference to the radius as well as the wheel size.

This might be handy:

http://www.etyres.co.uk/tyre-size-calculator.htm

I have replaced my 225/50/17s for 215/60/16s and the result in rolling radius is +1%. Tyre profile makes quite a difference to the radius as well as the wheel size.

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What then is the speedo and mileometer error?

I believe there is an option in the Maxidot to account for the different rolling radius of winter tyres and smaller wheels.

The other option is to could swap your Dunlops for winter tyres of the same size (225/50/17). I'll be doing this in 3 weeks, mainly because my Yeti's a lease.

This option depends on winter tyres being readily available in this size and the regular swap over being at reasonable cost

I believe there is an option in the Maxidot to account for the different rolling radius of winter tyres and smaller wheels.

You are correct but not sure how you would adjust for wheel/tyre size error on this. Anyone know as this could be the answer

You are correct but not sure how you would adjust for wheel/tyre size error on this. Anyone know as this could be the answer

Really? For some reason I assumed the winter tyre setting in maxidot was to do with setting a speed warning when utilizing winters?,

Really? For some reason I assumed the winter tyre setting in maxidot was to do with setting a speed warning when utilizing winters?,

I think that you may very well be correct!! Shame though - it would have been a great idea.

I believe there is an option in the Maxidot to account for the different rolling radius of winter tyres and smaller wheels.

Sorry - my mistake.

just read the manual and this setting is just a speed warning after all.

http://www.ukzero.co.uk/calculator1.htm