PRP’s Manx mount is designed to fit PRP’s Roadster Suspension Seat in a VW Baja Bug, Standard Bug, Meyers Manx, or Dune Buggy. No drilling or modifications to the mount are necessary. Measuring 12” from side to side, these dune buggy seat mounts are 2” narrower than PRP’s Manx Mounts to accommodate the narrower width of the Roadster seat.