4*4 Trail to Landslide (repaired but narrow and potentially dangerous)

This Trail leads to area that experienced a Landslide at the Southern end. The track has been repaired but very narrow, not wide enough for 4x4 vehicles. It is also very Steep on the other (Southern) end of the repaired Track. It would be very dangerous in the wet and at night. On a Dual Sport motorcycle the far end is so steep with little grip on the rocky surface, one would need fair speed to get up and one mistake could prove fatal. A specialized Trail Bike with skilled rider might be able to tackle it safely. Better / Safer to walk it up (with engine assistance) or carry a Mountain Bike up perhaps!