Agents of STRIKE
Sky-Cycles are a fairly recent invention, a prototype design of Tony Stark’s that was acquired by SHIELD and ARMOR decided to actually build and put into practice.
They are single-seat repulsor craft, capable of allowing an individual to fly and move quickly along the ground and surface of the water at high speed nearly as much ease as piloting a motorcycle.
An on-board VI is capable of taking over as auto-pilot and performing basic evasive maneuvers in a combat scenario, allowing the pilot free use of their hands to engage while continuing to move and fly.
The Ultimates and ARMOR’s Exploration Corps make extensive use of Sky-Cycles, especially the latter as Sky-Cycles can fit through the Holepunch’s aperture while a Quinjet cannot.