What if you could just zip on your winter tyres on the days you needed them?

We've had about eight inches of snow down here in Bath, and it hasn't stopped yet.

It's not great for productivity in the sense of people actually being able to make it to the office, but on the other hand it's great testing weather for the reTyre system from Norway. The premise here is that you don't need studded tyres all the time, and when you don't need them they're draggy and horrible, and when you do it's a faff to change them over. reTyre works by having a studded outer that you simply zip over the standard city tyre as and when conditions demand.

But does it work? Well, we had a go. Watch the video to hear our first impressions...

Dave is a founding father of road.cc and responsible for kicking the server when it breaks. In a previous life he was a graphic designer but he's also a three-time Mountain Bike Bog Snorkelling world champion, and remains unbeaten through the bog. Dave rides all sorts of bikes but tends to prefer metal ones. He's getting old is why.