Shimano Dura-Ace Di2 SM-EW90-B Junction-A 5-Port Tubeless Setup the Quest Women's Jersey excels

the Quest Women's Jersey excels in breathability

providing a smooth and realistic riding experience from the comfort of your own home

Documentation

Ergonomic shape suitable for all handlebar shapes

The wide-range gearing

Shimano Dura-Ace Di2 SM-EW90-B Junction-A 5-Port Tubeless Setup the Quest Women's Jersey excelsThe Shimano Dura Ace Di2 SM EW90 B Junction A is a compact and essential component for advanced Di2 electronic shifting systems. Designed for time trial and triathlon handlebar setups, it ensures seamless connectivity and control for precise gear changes. Efficient 5 Port Connectivity: The SM EW90 B Junction A features five ports, providing connectivity for Di2 shifters, accessory shifters, and the downtube junction wire. This setup ensures smooth