http://www.wheelchairexpert.com/site3/WheelChairExercise
Wheel Chair Exercise

http://www.discountwheelchair.com/discountwheelchair_009.htm
Handcycles, handbikes, recumbent, wheelchairs, scooters, wheelchair batteries, lifts, lift out chairs, cushions, sleep therapy, CPAP, BiPAP, nasal moisturizing gel, rollators, pediatric wheelchairs, power wheelchairs, wheelchair ramps, and medical equipment and supplies for sale at lowest possible prices

http://home.wi.rr.com/birzer
The Wheelchair Racing Resource Page is a list of Internet resources relating to wheelchair racing.

http://www.wheelchairresource.com/
Everything Wheelchair, from Action Wheelchair to Whirlwind Wheelchair.

http://www.sportaid.com/catalog/page31a.shtml
TUFO Wheelchairs RACING TIRES, TUFO S3 LITE SERIES, S3 LITE, JET SPECIAL, S3  26" LITE, 26" JET SPECIAL