A simple tire I designed for the new Latrax rally car. I'd call this the biggest test of Ninja Flex. And it works well so far. My design could use some work, at 30% infill it is rather stiff. It ends up close to D(drift)-compund but it's still fun. I would not print this in PLA, as flexible as the wheel is, the bead will not go on.50-60mm/s extrude speed 100-120 transit, some stringing Tried printing it hollow and had some layer issues, 30-40% works well.