Identical to the regular Aero air suspension but this kit is supplied with a manual hand pump only. To upgrade the Aero HVG to on-the-fly adjustability. The latest developments in air suspension for H-D models; offering one of the best rides man could wish for. Comes self adjusting deflective disc dampening and the latest Aramid Fiber air spring technology to maximize travel and provide full adjustable ride height at the same time. It''s like having 12" and 13" shocks in one. Smooth no-stick damping due to low friction seals and quick reactions on fluid flow management with High Flow fluid pistons. - Air suspension offers a number of benefits over coil springs; particularly with adjustability - Lower your seat height while parked - Switch between 1-up and 2-up riding - Get that cool; low look - Air suspension handles it all. Note: A compressor kit; complete with under chassis mount; handlebar compressor operating switch; plug-in wiring and 3 Deutsch connectors is available as 954741.