The Shimano Ultegra Di2 ST-R8150 brake lever for SLR-EV brake system offers unparalleled modulation and control. Wireless shifting provides a clean look on the bike and allows for uniquely fast and precise shifting. All these features are integrated into a DUAL CONTROL shift/brake lever that is both lightweight and ergonomic thanks to the use of state-of-the-art materials ensuring optimum comfort and control even under challenging conditions. Improved aerodynamics – Revised DUAL CONTROL shift/brake levers with raised and rounded brake grips. The drive can be adjusted to the rider’s preferences via the E-TUBE app. Among other things, the shift speed can be set, a fully or semi-synchronous shift mode can be selected and the programme buttons on the shift lever can be assigned certain functions. Fastest gear changes front and rear. We aim to provide you with the best service possible. Thank-you For shopping with us.