You can try centering the chainring using Sheldon's method: http://www.sheldonbrown.com/singlespeed.html#tension https://velowoodcyclery.wordpress.com/2011/04/14/centering-a-chainring/
I used it on non perfect round (cheap) chainring and it helped so much. Still not perfect but way better.
@sirBenek started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
You can try centering the chainring using Sheldon's method:
http://www.sheldonbrown.com/singlespeed.html#tension
https://velowoodcyclery.wordpress.com/2011/04/14/centering-a-chainring/
I used it on non perfect round (cheap) chainring and it helped so much. Still not perfect but way better.