So we all know that Winter boots are quite pricey, but having just read up a bit more about this... your not meant to use them at below 4mm tread. So at half worn they are next to useless!...
What we are actually buying is a set of 4mm tyres brand new, and bin them when they get to 4mm!? That makes them VERY expensive.
I've got a set of Winter tyres, all very close to 4mm; thought I'd be using them this year (I still will, if only to test) but what are your thoughts on this, seems crazy.