The SHIMANO TIAGRA ST-4700 DUAL CONTROL LEVERS feature Reach Adjust and an Optical Gear Display in an ergonomic form that is compatible with 2x10 speed drivetrains.
                                   
                                   The SHIMANO TIAGRA ST-4700 DUAL CONTROL LEVERS feature Reach Adjust and an Optical Gear Display in an ergonomic form that is compatible with 2x10 speed drivetrains.