The Nemesis appears to be based on the Ducati Monster, with a front fairing similar to the Kawasaki Z750. The front is very similar in design to the Vader. There are no body modifications for this motorcycle.
This bike has decent speed and fairly good acceleration. It handles surprisingly well off-road.
Has a 100% spawn in the mission "Lost in Transit". One of the three teams spawns next to four of them and that team will also respawn riding one when killed. Must park it in your garage before the mission ends. Also note, the truck you are pursuing will be moving and the mission ends if it is destroyed or returned. It is best to coordinate with two other players and have one of them secure the truck and take it to a safe location. It seems that the "Lost" gang does not pursue the truck into the city.