Another good thing are little snow chains or spikes, I know it from Borovez ofter the sun melt the snow middle the day and later in afternoon anything is freezing again, so the most roads are slippy and most roads are up or down, so you can stop unforced damage on bottem and arms...
Sune
P.S. these little things make you even faster so first at the bar, last one leaving because you can maybe not walk a line but have the grip