I'm thinking of trying out some winter riding on a recumbent tadpole trike. (ie the single drive wheel is in the rear).
With regular tires it slips all over the place; of course you can't really wipe out but still its not practical and is perhaps unsafe to ride that way.
I was contemplating rugged snow tires or even studded tires, but I'm not sure what configuration for this type of trike would be ideal. I think studs on the rear may be necessary for max traction but I'm not sure if that would be the best choice for the front? Could it even have any downsides? It is possible to roll this trike by cornering too hard, not sure if studs would even make that more likely.
Temperatures in the teens/20s (F, or -12 to -4 C) are typical, and snow is on the ground a lot of the time. I'm planning to ride on packed down roads or trails, not in deep or loose snow. Secondary roads are generally gritted, not salted.
The existing tires are all 20x1.50 and there is ample clearance for fatter tires. On the front there is literally nothing near the wheels at all, and in the rear the frame is spaced out a lot. I think we can assume tire width is not a limitation.
The current tires are pretty smooth - they slide easily in gravel for instance. Totally unsuitable for ice or snow.