We apply extensive ergonomic research to the design of our road components with the purpose of reducing any stresses that the bicycle's control functions impose on the rider.
For example, our STI Dual Control Levers let you shift gears quickly and precisely without repositioning your grip on the hoods or drops. Our Dual-Pivot Caliper brakes are powerful, responsive and easier to modulate than conventional brakes. And then there's our HOLLOWTECH II crank technology that actually increases strength and stiffness while reducing weight.
The highly anticipated DURA-ACE electronic road components that feature Di2 technology complement the mechanical DURA-ACE 9000 series. The electronic DURA-ACE 9070 series embraces state-of-the-art technology that will give its users a revolutionary road riding experience.