This system is not cheap. The BionX PL500 system is $1,990.00USD.
–The Bionx PL500 kit includes a spoked wheel with motor, console, battery mount with cables, battery pack and charger.
–Wheel sizes: 700c, 26″, all with a standard 135 mm rear drop-out.
–Gearing installation is easy with a threaded free wheel.
–The BionX system can be installed on a tandem, folding bike or recumbent; any bicycle with a standard shifting system.
–The Bionx control console includes a programmable anti-theft alarm and a thumb throttle for instant acceleration.
–The Bionx motor wheel is compatible with disc or rim brakes.
–Variable-speed thumb throttles is included.
BionX Power Assist System Kit: