Specialized's Nimbus Armadillo Reflect features bead-to-bead flat protection that's excellent for commuting and road riding. It rides great thanks to its grippy inverted tread design and sports an extremely durable rubber compound so you can log all the miles you want. Plus, it has reflective…
Shimano's Ultegra 11-Speed Cassette delivers pro-level shifting and durability. The computer-designed tooth shapes and tough cogs mean you can shift quickly, precisely and smoothly even under pressure. Rider-tuned gearing options offer a range of cassettes to suit your riding style.