Shimano Ultegra ST-R8170F Di2 Right/Rear Lever with BR-R8170 Hydraulic Flat Mount Disc Brake Caliper Apparel_Men's Cycling Jerseys :SPEED’s exclusive Electrolyte Blend is

:SPEED’s exclusive Electrolyte Blend is composed of natural Sea Salt

like SRAM / Truvativ GXP and Quarq DZero

and 12mm recycled carbon fibers are dispersed evenly by a foaming latex to create ultra strong seals

Includes 4 oz Finish Line DOT fluid

BOA® L6 dial on instep strap quickly and comfortably secures a wide range of foot shapes

Shimano Ultegra ST-R8170F Di2 Right/Rear Lever with BR-R8170 Hydraulic Flat Mount Disc Brake Caliper Apparel_Men's Cycling Jerseys :SPEED’s exclusive Electrolyte Blend isYour time on the bike is precious, let Shimano make it even better. Ultegra ST R8170 brake levers bring enhanced modulation and control to every ride by employing Shimano's proven SERVO WAVE technology. The Di2 platform untethers the shifters while delivering fast and reliable wireless shifting. The BR R8170 hydraulic 2 piston disc brake caliper brings a new level of control to the road cycling world with improved modulation and a quicker initial