Whether this is your first wheelchair or not, the A4 wheelchair can be set up very stable or easily adjusted for maximum performance. The new super lightweight frame is more compact and easier to transport, while the curved rear frame is sporty looking. The camber tube clamp assembly allows you to fine-tune the center-of-gravity in an infinite number of settings. Plus, with rear seat-to-floor height adjustments in 1/2" increments and an adjustable-angle fold-down back, you can set your optimum position to ride in style. And it comes with Invacare's patented camber technology, so you can change the camber in seconds. About the only thing we didn't change is the legendary performance. It comes standard with every new A4 wheelchair. Imagine that-the adjustability you need and the performance you want. You wouldn't have it any other way.