:) I think your talking about these.They are a great commuting tire.Roll fast on the pavement and gives you that extra griping power in the turns.
Originally posted by mrfix
I would assume they work ok off road, when they're not ripping your derailure off but I see them presenting a huge amount of rolling resistance on pavement. I think they would be slippery on pavement also. I ride the Nokian mount and ground studded tires, they roll fairly well and grab on the ice like it's a dry streel, they also have enough rubber on the ground to be safe when you're on dry road.