Big Sioux Power Sports is just across the parking lot from J&L Harley-Davidson in Sioux Falls, and is also owned by the Entenman family. While Big Sioux Power Sports is not affiliated with the Harley-Davidson stores, customers can expect the same level of fun, excitement, customer service and community involvement they enjoy from the J&L and Glacial Lakes stores. You’ll find everything for your on and off road needs, including new and pre-owned motorcycles, ATVs and snowmobiles.