Ohh yes they have to have spikes to hold that well on the ice.......but what kind?
The big ice racers use spikes that are down right scary looking.
These are a bit smaller and looks about like some I have used before.
I have these on my plow tractor and they work great I also have used something very similar years ago on my blaster tires for running on ice.
The tractor on the right has 168 per tire of 1/2x#10 hex head sheet metal screws in each tire and it took about an hour to do, I didnt care about these tires and needed traction so in went the screws, it works very very well.