 Widely used as short-range transportation and for recreational purposes, antigravity bikes, commonly called grav bikes, are common throughout the Federation. At their most basic, they consist of an antigravity generator, a microfusion power source, an RCS thruster system and a seat. They have no life support systems or shields, are rarely armed, and have only the most rudimentary sensors, little better than a tricorder. Grav bikes are the modern equivalent of the Earth motorcycle. While they can be used in space with the aid of an environmental suit, they are almost always encountered on a planetary surface. Grav bikes are incapable of achieving orbit, and are generally operated at heights of less than 50m. Although they do not have a true autopilot, they can be preset to follow a programmed course, and have a basic auto-avoidance and warning system. In the case of an injured or incapacitated operator, they can be slaved to another grav bike, or operated remotely from a ship, shuttlecraft or ground base within communications range.
 The Harley Davidson HG888 Heavy Grav Bike is a large antigravity bike, capable of carrying two persons in tandem, and a moderate amount of stowage in the rear pannier.
 The Kawasaki KW-2350 Grav Bike is a light high-speed antigravity bike. It is a single seater, and does not have any stowage. Any equipment must be carried on the rider's person, in a backpack or pockets. Three HG-888's and two KW-2350's are assigned to Dyson Base. As they are short-range vehicles with a maximum range of only about 30,000 kilometres, they must be transported to the area of operations in a shuttlecraft or a runabout cargo module. The KW-2350 has no provision for mounting weapons, but the HG-888 can be fitted with a Type III Phaser emitter.
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