SHIMANO ULTEGRA 2X12 wave hand lever-left/right-ST-R8170 /SHIMANO ULTEGRA SHIFT/BRAKE LEVER-LEFT/RIGHT-ST-R8170

feature

Clean handlebar area: wireless connectivity for enhanced aerodynamics and easy maintenance

Listening to professional riders to refine unique ergonomics

The raised top of the grip is more ergonomic

Best brake control

Lighter and smoother control actions

Enlarge the brake control area and improve adjustment capabilities

Compatible with wired and wireless connections

Fits other satellite shift knobs

High electron energy efficiency

1.5 to 2 years battery life with easy-to-replace CR1632 shift knob battery