Motorcycles and Grav Bikes for SG2

Ah, how to run these....

My thoughts:
- Smaller and faster than a jeep or other size class 1 vehicles.
- Don't take hits well.
- Can mount some limited armament.

Sounds like a size 0.5 vehicle to me.

Characteristics: Can mount 2 spaces of weaponry (2 SAWs, or a size class 1
weapon mounted fixed) Can mount fire control or weapon can be manually
targetted.
Moves as a vehicle.  Dismount riders may Re-org to form a combat squad.
Fired at as if size class 1 with an additional penalty - fire at them as
if 1 RB further away Treat as soft skinned vehicle for purposes of impact from
heavy weapons or small arms. (This abstracts the fact the fairings may be
armoured, but the sides aren't.... it provides SOME limited cover for the
occupant. If the vehicle is hit and penetrated, the crewman may of course have
an armour save. Typically, move as vehicle (d12). If you want to be real
nasty, you
might let them roll 3d4 instead - makes them a bit faster than other
vehicles in the game. They can carry one crew man plus 1 passenger. If they
carry a passenger, shift their movement die down a die type to represent the
encumberance factor.

Just a thought. These make good couriers.