The recommended tire for the Sumter AMA National Enduro in South Carolina is the Southwick II, this tire with it tall aggressive knobs and open tread design is great in the sand. The alternate tire would be the Millville II, that works well in conditions like sand, loam and clay. The Kenda rider support boxes will be at this round, they will be at the first and second gas truck, in you get a flat during the race. The boxes contain Kenda Tuff-Tubes, bike stand, tools, tire spoons and air compressor. The tubes are on the honor system, just stop by after the race and pay for what you use. The support boxes are for all the riders regardless of brand tire you run. Trackside Support LLC the trackside vendor for Kenda tires will have a selection of Kenda tires and tubes. They also has bib mousses for those that do not run tubes. You can reserve your tires at email@example.com or call Tim at (248) 431-7506 before 10 PM EST. Mounting is available on Saturday for tubes, bibs and most inserts. A limited selection of Kenda youth tires and Tuff-Tubes will also be available. Stop by the giant Kenda arch and say hello.