The specialized hemisphere armadillo 26x19 tyre the hemisphere armadillo tyre is a modern versatile and durable trekking tyre with tough puncture protection and a bold tread that delivers control on loose surfaces this tyre39s serial centre blocks roll easily on paved surfaces while providing off road traction by featuring wide spaced shoulder blocks that bite into soft ground and with maximum flat protection from our armadillo technology the hemisphere excels on streets and