The motorcycles rolled to a stop and twin hydraulic jacks slammed down onto the pavement like oversized kickstands or half formed legs. They thrust each bike nearly a foot off the ground, where they stood revving their 1800 cc engines deafeningly. Then twin robotic arms with gleaming three-foot sword blades unfolded from the forward hydraulic assemblies, lashing forth on gimabls, arcing smoothly with blinding spead as they ran through diagnostics like insects cleaning their antennae." Razorbacks are autonmous vehicles that can move between terror weapon and targeted assassination. Their primary armament are the two blades on the robot arms (which can swap out damaged blades like a fancy utility knife). They also have a blinding laser to disorient targets and make them easier prey. Finally, razorbacks have a battery powered 'stealth mode' that allows them to sneak up on targets.