Roman Abramovich sailed into New York City on his $1.5 billion yacht, Eclipse, but had a fine time biking through Queens the other day. The Russian billionaire and owner of the Chelsea soccer team was on a bike ride — surrounded by six security guards — through the borough Friday afternoon when he got hungry, and stopped off for lunch in Astoria at Greek restaurant Stamatis. A source tells us: “He came to Astoria from Manhattan with an entourage of six security guys, all on bicycles.” Abramovich, dressed in professional cycling gear and sunglasses, was also described as a “generous tipper.” Abramovich’s girlfriend Dasha Zhukova gave birth to the couple’s baby girl in April.