put nails poking out your tyres evenly, then with a spare tube + no valve going round in the spare tube (to act as protection from the inflated tube) put it in your tire then pump up the tube your going to use (DH tubes and ur sorted) and give that a go. we done it last year with an old pair of creepy crawlers and it worked for about 30 mins till the snow was gone and rode down my road with people looking at me like WTF it was brilliant! hills were fun as f too hahaha
why did i bother? because im young and dont feel embarrassed making makeshift "parts" but no offence if your in Russia you'll probably be fine
EDIT: but the nails moved so had to make them loads shorter... thus meaning - pointless.
move house instead