Just got these and put them on my electric assist before our first winter storm. Rode 14 km home at 35 kph on mixed terrain and around 5-10 cm of snow. These performed perfectly through the snow, some ice and dry and wet pavement. Way better than the Ice Spiker from Schwalbe I had for the past 2 winters. Great traction accelerating and braking, amazing on corners.
This is my first studded bike tire. I purchased it because I had ridden a couple of times in the early winter on the original mountain bike tire that came on my hard tail and experienced a couple of near slide-outs with my front tire. I decided that it would be an necessary upgrade to invest in a studded tire for my front, to avoid any such slide-out when on sidewalk or anywhere near vehicle traffic. I believe that anyone who rides on sidewalk/pavement in an area that experiences snow/ice should invest in a studded tire. I have found that having the studded tire gives me a boost in confidence when riding through that uncertain conditions of winter. I plan to purchase a second tire, for the rear, in the coming weeks.
If you have a set of 650b wheels this is a combo that almost gets you into semi-fat-bike width for winter riding, very aggresive tread and studding, plush ride, no problems fitting the 2.1 width into my gbike fork and stays. Wish they were cheaper but pay-to-play.