Snowmobiles are a popular mode of transport and there are more snowmobiles than residents. Motorcycle Superstore also sells products for scooters, ATVs, snowmobiles, and personal watercraft. Examples of powersport vehicles are motorcycles, ATVs, snowmobiles and PWCs. Fox Factory produces suspension components for motorcycles, automobiles, all-terrain vehicles, snowmobiles, and mountain bikes. It is used on batteries for motorcycles, boats, golf carts, garden tractors, and snowmobiles. Engines with larger displacement were used in small and snowmobiles and motorcycles. There are additional rules regarding firearms possession on ATVs and snowmobiles. The Border Patrol also operates all-terrain vehicles, motorcycles, snowmobiles, and small boats in riverine environments. Such engines have commonly been used in snowmobiles and ATV. Trailers, motorboats, all-terrain vehicles and snowmobiles are also subject to this tax. In 2012, SGI made Rider plates available for motorcycles and snowmobiles. Patrick Jr. raced snowmobiles, motocross, and midget cars. Many cars, trucks, SUVs, snowmobiles, and fish houses fall through the ice each year. Examples of vehicles using continuous track are tanks, snowmobiles and excavators. The Sudbury Trail Plan grooms almost of trails for snowmobiles in the winter.