... The sidewalk north of 87th was still covered in a thin layer of ice, which worked nicely with the studs this morning, but I think they would have been ridable with normal knobbies. The path over the viaduct, however, is a different story. The slush had frozen hard into an arctic moonscape. Imagine technical singletrack with 1/10th the traction. The studs did worse on this than before it was frozen. Yesterday, it was merely difficult to pedal through. This stuff was constantly flailing my bike around all over the place. Needless to say, my ride to the bus was very, very slow. I don't have a proper pair of studded tires to compare them to, but I'm pretty sure there's not a tire out there that would make easy work out of this stuff. ...