• 20574: High banked curve 1/30 grad

  • 20575: High banked curve 2/30 grad (6 pieces for 4-lane extension)

  • 20576: High banked curve 3/30 grad (6 pieces for 6-lane extension)

  • 20579: High banked curve 4/15 grad (12 pieces for 8-lane extension)