It has Impact late style Panzer IV tracks and are really great, I have them also on my Panzer IV and really don't have any issues with them. The only problem i have ever had was on the JP4 when a track pin backed out and rubbed against the side skirts. I think, but can't confirm that it is what caused the last side skirt to pop up at that weird angle. After the battle i took it back to the bench and pushed it back in and didn't have any more problems.