Shimano 8170 Di2 Rh Sti W Bk Food & Game Preparation 8 Illumination Settings our 4D Brow Cooling 8 Illumination Settings the Wilderness is the perfect blend of functional technology and comfort Features The wireless connection provides a clean cockpit enhancing the aerodynamic effect and easy maintenance Wider pad clearance decreases brake noise Maintenance friendly bleeding process Unparalelled ergonomic features such as raised hood peaks on levers Brake control is optimized with light and smooth lever action Enhanced modulation thanks to an expanded braking control area Compatible with wireless or wired connection Despite its smaller construction the system is quieter than ever and easier to maintain