The SM rolls on a pair of 17-inch wheels and full-on street rubber, has a larger front-brake disc (300mm vs. 250mm), and its suspension is tuned more for street riding. You lose about an inch of wheel travel at both ends with the SM, but the springs are stiffer. You also lose nearly two inches of ground clearance and approximately an inch and a half of seat height, which is good news to many, especially beginners. The SM weighs about two pounds more than the dual sport, but you won’t notice it.