Hi - My sons and I are avid mountain bikers on Vancouvers North Shore & Whistler, but my wife had a knee replacement and wants and e-bike. We had ordered from Biktrik but they did not deliver as scheduled, so now are looking for a replacement. My wife would want a comfortable seat, shocks, and for nostalgia sake to do no more than a green run. My problem is that I don't want to buy older bulkier battery technology, or cheap no brand drive trains & non Shimano components that would render the product disposable. Amazon and Costco have lots of options but just looking at the no name shocks I suspect they would be poor quality. Any recommendations?