Shimano 105 CS-HG700 11sp 11-34t CassetteThe Shimano CS HG700 Cassette displays Shimano's experience in machining and engineering and how it allows for exceptional amounts of technology to go into tooth design, shaping, and shifting ramps. Shimano does a great job trickling its technology from Dura Aceand Ultegra groupsets to the 105 sets. Made from nickel plated steel, the cogs themselves withstand corrosion and are tough enough to hold up to off road abuse, which provides durability for