Yep. That's definitely a wolf. The wolf just has a summer coat and wolves in their summer coats tend to resemble mangy mutts. Here's an example of a high content artic wolfdog's summer(top) and winter(bottom) coat.
(This animal is in texas, so in Canada where our summers are +30 and our winters are -30 the coat changes are even more dramatic)
Personally I find that czechs look very distinct from wolves and wolfdogs, but I've gotten very familiar with how they look over the years. Honestly I find them about as wolfy looking as huskies(so like.... not at all lol) but that is just me.
The wolf chasing the motorcyclist is probably a silly adolescent still learning the ropes when it comes to hunting. He looks like he's having a good time, though.