StudioRSR BMW M4 (F83) roll cage / roll bar

Tesseract BMW M4 Roll Cage StudioRSR has developed an outstanding rollcage / rollbar (half-cage) for the M4 (F83 chassis) to fulfill motorsport, HPDE, and track-day needs. Increased chassis rigidity and safety combined with a modern design befit of the BMW M4, makes the StudioRSR Tesseract roll cage the premium option available in the market. Update 1 Nov. '16: Chromoly 4130 lightweight version now available. Update 2 Nov. '16: Choose your desired Rear-Leg design (Tesseract bent or Straight leg)Update for F80 M3 owners: The Cartesian F80 M3 Roll Cage is now available Designed and manufactured in-house, StudioRSR uses the latest manufacturing technologies to create this upgrade with **NASA Racing specifications** and wide-radius bends. There is zero metal crimping and zero tubing wall failure that is often seen from alternative roll cages. The Tesseract half-cage is 100% bolt-in featuring a 4-point optimum mounting design with form-fitted brackets specific to the F83 chassis. Profession