PURE GEOMETRY. Dual-Tube Technology is at the heart of the new Aero T. The geometry of the flowing lines stiffens the wheelchair, transferring more of your push stroke directly to the ground. No wasted energy means fewer strokes throughout the day. This is the key to the exceptional performance of the Aero T. TiLITE INNOVATION New, Swept-In Dual-Tube Frame. Advance frame geometry insures: Extraordinary handling on any surface Superior rigidity Optimal energy transfer Sweeping curve of the lower frame tube creates a unique look as the lower frame blends in and fades away. Curved titanium backrest tube further enhances the clean new look. TiShaft back release bar makes folding and unfolding the backrest easy from any angle. Adjustable Camber Mount incorporates TiLites Tru-Fit System with up to 3.5 of Rear Seat Height adjustment.