Four councillors will boycott the Tour de Yorkshire next month in protest at fracking firm Ineos taking over the sponsorship of Team Sky.
Doncaster Labour councillors Dave Shaw, Nikki McDonald, Tosh McDonald and Lani-Mae Ball said they will not be supporting the race as it comes through the town on 3 May.
Ineos has licences to frack in Yorkshire, Cheshire and the Midlands.