I currently have kevlar vittorio rubbino tyres on my road bike, but they don't have enough grip for the oncoming uk winter conditions. What level of tyre tread do I need for road commuting on uk winter roads and any recommendations welcome. I would still like to maintain a low weight and good rolling resistance.
In my experience, road tires are inherently "unsafe" to use in winter. As soon as there's ice, the tread doesn't help much. In snow however, narrow tires will "cut through" to the asphalt anyway and have the same grip as in summer, provided there's no ice underneath the snow.
I would suggest tires with a puncture-proof layer because of grit and salt in the roads, especially once the snow melts. I've made good experience with Continental's GP4000 tires in this regard.