With Bursaspor, Bahadır advanced as a football player and fit well with the tactical gameplay of manager Ertuğrul Sağlam. During the entire 2009–2010 Turkish Super League season he usually played as a pivotal striker for Bursaspor, but due to his high technical abilities he was also used as a right winger in the absence of Volkan Sen where he performed flawlessly. Bursaspor became the champions in the Turkish Super League 2009–2010 season for the first time in the club's history, whilst Bahadır scored 7 league goals and 3 Ziraat Turkish Cup goals. His most vital goals for Bursaspor in this season were against Trabzonspor in Huseyin Avni Aker Stadium in a league game and against Denizlispor in Ziraat Turkish Cup; both matches ended with 1–1 draw results.