Wheelchair Mountain Bike Wheels - The Accessible Planet
Amazon.com: KEMIMOTO Dirt Bike Spoke Covers 72Pcs, Universal Pipe Trim for 8"-21" Wheels, Spoke Rims Wraps for Dirt Bike, Motocross, Bike, Bicycle, Wheelchair, Motorcycle Decoration Protector (Red) : Automotive
Modifying for All-Purpose Wheeling - New Mobility
SAIT students design electric wheelchair–mountain bike - Macleans.ca