Rio Mobility Redefines Mobility
From: Disaboom.com - 07/22/2011

(text from their website)

The first Rio Mobility product was the Pivot. Basically, it adapts a manual
wheelchair with a dual lever drive and it propels with an ergonomic motion
similar to rowing a boat. One can power up hills or race down sidewalks with
ease because it has multiple gears. This accessory moves forward with push
and pull strokes which doubles power, balances muscles, and relieves strain
on shoulders. The Pivot can be added to any manual wheelchair with quick
release wheels. $3950 

The Dragonfly is an efficient arm-powered bicycle that attaches to your
wheelchair, perfect around town. 

The Firefly is an easily attachable electric handcycle for your wheelchair,
perfect around town. Power and speed in a compact package! Travel at least 15
miles (24 km) on a single charge. 

Rio Mobility website:
http://riomobility.com/en/