Continental Tires has once again generously donated the special Contact Security System tires to the BikeTown AfricaBike project. These tires are designed to be used on bicycles in factories, steel belted to repel staples, splinters, wire, nails and all the other various metal shards that you find on factory floors. They are steel belted throughout and the only tires to pass Kona's hunting knife puncture test. 
More importantly, the tires have performed exactly as we had hoped in managing the goat heads that are rampant in Africa. BikeTown-tested and approved.
Thanks again, Conti.