It is important to strike a proper balance between your gear ratios, your fitness and the topography of your rides. Choosing the right cassette could mean the difference between dominating that hill top finish or falling over on a hors catégorie climb. With the Shimano Ultegra 6800 Cassette and, what the company has dubbed, rider-tuned technology, you can find a cassette that maximizes your own individual riding capabilities and strikes that perfect performance balance. There is some great trickle-down technology transferred from the Dura-Ace 9000 group to Ultegra 6800. The most beneficial of these are the 11-speed drivetrain and the wider range of gearing options. Like Dura-Ace, the Ultegra 6800 standard rear derailleur works with cassettes ranging from 11-23 to 11-28 but this new second-tier group has a few tricks of its own. The new Ultegra GS mid-cage rear derailleur allows you to run a previously impossible 11-32 cassette, a capability that not even Dura-Ace 9000 has. For touring purposes or the ultimate climbing rig, this 11-32 will give you a huge advantage when things get steep. Let Ultegra 6800 provide you with the tools to dominate the toughest rides and the toughest competitors. Those podium girls have to kiss someone—it might as well be you.