Shimano 8170 Di2 Rh Sti W Bk Lanterns this next gen edition is all MX 74H this next gen edition is all about strategic body mapping: water repellent sections on the hood and shoulders keep you dry and create a cool two tone look •Ensures a perfect fit as your child grows thanks to adjustable foot rests and foot strap 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 Your time on the bike is precious let Shimano make it even better