My Traveler is soon to arrive, so I am looking at all of the options out there. One is to put an E-Kit onto the Traveler. I have spoken to some experts who said that the E-motor will not add any problems to the folding of the trike and add about 10 extra pounds to the rear wheel. For the Traveler, they would recommend mounting the battery to a removable rack. Normally, the rack is "permanently" mounted onto a bike and the battery is carried on such a rack. Because you cannot fold the Traveler easily with a permanent rack, you need to buy a removable rack. I did find one that will cost $166 including the shipping (just do a YouTube search for TerraTrike Traveler Rack). Please give any comments from anyone who has converted their Traveler to this option. I plan to keep my Traveler stored in my VW Passat trunk and always be ready to ride!!!!!!