Is it still a motorcycle — or a bike — when it has three wheels? Is it really worth an argument? I don’t think so. The touring stable at the Can-Am farm includes the Spyder RT, RT-S, and RT Limited for the 2017 model year. All the rides feature the Rotax high-torque engine and 41 gallons of cargo space. They are tourers, of course, so think of them as full dressers: saddlebags — each big enough for a full-face helmet — and top case, heated handgrips, big adjustable windscreen, and full passenger ensconcement with adjustable floorboards.