Alloy, Aluminum Alloy

Dual Control Shifters Set Left&Right 105 ST-R7000 Ergonomic design with greater reach Light action, define click engagement, vivid index shifting Updated internal shifting unit Powerful and controllable braking system with inner cable only Shimano 105 Front Derailleur FD-R7000 Braze On (Direct Mount) provide an ultra-smooth shifting action New designed pull arm for more direct and easy shifting Braze-on Shimano 105 Rear Derailleur RD-R7000 Shadow RD Technology Precise and accurate shifting more compact and fits closer to the frame Short Gage (28T30T comes with Short Cage, 32T/34T comes with Medium Cage ).