Shift/Brake Combinations

Shimano Ultegra ST-R8150 levers combine the accuracy of Shimano 12-speed Di2 shifting with the light weight of rim brakes. - Quick and intuitive shifting - Clearly defined click feeling with ergonomic shifting lever - Better bike control and confidence in race conditions - Hood shape and texture optimize grip and brake power transmission

Combining SHIMANO's well-praised hydraulic disc brake technology with light action mechanical shifting, the DURA-ACE R9120 levers have a shorter lever stroke, expanded reach adjust, and lighter front shift action. Quick and intuitive shifting operation - Shorter lever stroke via redesigned internal shifting unit - Lighter front shifting operation - Redesigned front system for use with new front derailleur Comfortable grip and operation - More customizable and precise lever position - Reach adjustment range (10.9 mm) Consistent braking performance in all weather conditions - Easy brake control for hydraulic brakes

- Re-designed, compact hood shape wth improved ergonomics - Adjustable reach - Shorter lever throw than previous Tiagra shifters - Compatible with Tiagra 4700 and GRX RX400 components, but not with previous generation 10-speed groups (105 5700, Tiagra 4600, etc.) - Shifter Weight: 260g