SHIMANO Sm-Jc40 Wire Junction For Ew-Sd50 Size:STANDARD the primary electrolyte lost in

the primary electrolyte lost in sweat that aids in hydration by maintaining fluid balance

Hard wearing and cut resistant

The crossover straps are perfect for ensuring straps stay in place

They feature Easy Inflate™ valves for 50% quicker inflation and deflation

Inside protection treatment: Anti-fog

SHIMANO Sm-Jc40 Wire Junction For Ew-Sd50 Size:STANDARD the primary electrolyte lost inThe Shimano Di2 SM JC40 Junction Unit for External Cables is the Grand Central Station of the e tube Di2 system. Dura Ace Di2 (Dual Integrated Intelligence) moves to the next generation. Tested in competition and taken to victory by pro riders in all conditions, including the 2012 Tour de France Team Sky. Features SM JC40 cable junction for external wire routing Junction is required for connection of rear mech, front mech, battery, and cable to