SHIMANO Di2 M-EW90-A JUNCTION 3 PORT electric_hardtail Max tire pressure 50 psi/3

Max tire pressure 50 psi/3

Composite Matrix frame mount included

nobody will be left behind with a flat tyre

high security disc lock cylinder with new patent pending hybrid cylinder technology provides increased security

SHIMANO Di2 M-EW90-A JUNCTION 3 PORT electric_hardtail Max tire pressure 50 psi/3The Shimano Di2 SM EW90 A Junction Box is a three port hub designed for cockpit mounted electronic shifting systems. This compact junction allows seamless integration of multiple Di2 components in the handlebar area, distributing power and signals efficiently across your drivetrain controls. Perfect for riders building custom cockpit setups, the SM EW90 A supports clean cable routing and reliable connections between your shifters, front derailleur,