Looking like riders from the 1940s, these cyclists probably were members of a political party campaigning for their candidate. Parliamentary elections were held shortly after your grandparents left Kiev.
As can be seen, we are on Sofiivska Street (maybe). Mala Zhitomirsk'a street is either 0.4 or 0.5 kilometers away. The Yakatori restuarant is 0.4 kilometers away and the Whisky Corner is a really short walking distance.