PRO Road Stem Vibe Carbon 90mm 31.8mm +/-8Deg Shimano Or you can go for

Or you can go for Semi-Synchro Shift and still operate the front derailleur

the Contact SL AeroLight stem is a lightweight and stiff alloy stem featuring easy-to-install cable integration for optimal aerodynamics and a clean look

in this way

Genuine Shimano CN-M8100 12-speed chain

Axle material: steel

PRO Road Stem Vibe Carbon 90mm 31.8mm +/-8Deg Shimano Or you can go forDesigned to provide you with a better sports bicycle experience the PRO Vibe Carbon Stem is a high end, full carbon, stem. Developed to complete the PRO Vibe cockpit it is constructed from UD carbon to ensure it is both lightweight and stiff. Features Full carbon stem, developed to complete the PRO Vibe cockpitAerodynamically optimized designUD carbon constructionEvolved puzzle clamping systemShimano Di2 compatibleFlipable design SpecificationsAngle: