My wife has a recumbent tadpole trike that she will be riding throughout Florida and the US after she retires next week. She has bilateral hip prosthesis and doesn't have the leg muscle needed to climb hills, bridges and long inclines. We have been looking at the Bionx System to put on her trike for when we travel. Has anyone had any good or bad luck with the Bionx brand of electric motors and/or battery systems? There is a LBS close to us that will give us a good deal on their bike rack system.