There's a MX track about 15-20 mins from my house that also has a flat track which may be 1/5th mile or just a tick smaller. The track owner has flat track bike/mini sprint/atv practices scheduled off and on during the summer months.I have a vintage rear engine go kart that I'd love to get out and play with in the dirt. I'm thinking if we could get enough guys to show up, the track could let us race once a month or something with the karts and mini bikes. Nothing too serious, just a fun day out on the track.
