: The original release thread for this track is hosted on the MX Bikes Forum , where the creator often posts direct download links (such as MEGA or Mediafire). How to Install the .pkz File
: The primary site for game modifications. You can search for "Underground MX" directly on MXB-Mods.com . Download File Underground Mx.pkz
: Move the .pkz file into the appropriate subfolder (e.g., Motocross or Supercross ). : The original release thread for this track
: If you receive an error stating the file is "damaged" when trying to open it with WinRAR or 7-Zip, this is normal. .pkz files are encrypted game archives and are intended to be placed directly into the mods folder without being extracted. Issue Installing Tracks - MX Bikes Official Forum : Move the
You can typically find and download this track through the following community hubs:
The file is a track mod for the simulator MX Bikes , which features a replica of the real-world Underground MX facility in Kemp, Texas. Where to Download
: The track should now appear in your in-game track selection list.