If you want to keep riding your Brompton all-winter long and you live in a city that receives lots of snowfall or freezing rain, this set of winter studded tires may give you more confidence riding on ice and packed snow. This tire has a 50 thread per inch weave and Schwalbe's K-Guard anti-puncture barrier. What makes it unique (and better for the winter) is the pattern of 72 aluminum-clad tungsten carbide "spikes" which protrude from the tire to give you added traction. The spikes are designed to dig into ice and slick snow and prevent slipping.