When we want to convert our trail bike to full-time winter riding, we throw on a set of Wrathchilds and keep sending our favorite trails all the way till spring. The tire's deep, aggressive studs are filled with aluminum carbide studs, punching through snow and ice to bring us traction in the harshest winter conditions. Choose from a 60tpi casing with standard-sized studs, or a 120tpi casing with extra-large studs.