S40: S 40 -- can't drive with snow tires / tyres?

[Bill_56]

Originally Posted by 961

Also, many winter tyres are designed to move in one direction only. In other words they can be fitted to the wrong side of the car so that they are revolving in the wrong direction. Do your tyres have arrows on the sidewalls and if so are they ALL fitted correctly

Just to add to that excellent point... even if the tyres are not directional, they may be asymmetric, meaning that the tread pattern on the inside edge differs from that on the outside edge. That is certainly the case with my Nokian WRG2s. Incorrect fitment in that respect could, I'd imagine, lead to handling defects.

Asymmetric tyres would normally have (and my Nokian WR G2s certainly do have) the word 'outside' embossed on the edge of the tyre that needs to face outwards all round.

[961]

Originally Posted by Bill_56

the tread pattern on the inside edge differs from that on the outside edge. That is certainly the case with my Nokian WRG2s. Incorrect fitment in that respect could, I'd imagine, lead to handling defects.

Asymmetric tyres would normally have (and my Nokian WR G2s certainly do have) the word 'outside' embossed on the edge of the tyre that needs to face outwards all round.

Many (most?) winter tyres are built this way

You put them on randomly and you will wreck stability