Junction box Shimano Dura ace Di2 SM-EW90-A

Shimano Dura-Ace Di2 SM-EW90-A junction box – reliability and precision for your drivetrain

Discover the Shimano Dura-Ace Di2 SM-EW90-A junction box, the central component of your Di2 electronic drivetrain. Designed to ensure fast and reliable communication between your electronic components, this junction box is essential for any rider seeking performance and smooth gear shifting.

Key features

• Compatibility: Compatible with Shimano Dura-Ace Di2 R9150 and Ultegra Di2 R8050 drivetrains.

• Connection Type: 3-port junction box (EW-SD50 / EW-90), allowing simultaneous connection of the front derailleur, rear derailleur, and battery.

• Waterproofing: IPX7 rated, resistant to water and dust, perfect for intensive use in varying conditions.

• Installation: Easy frame mounting with discreet and secure fasteners.

• Functionality: Optimizes gear shift synchronization, ensuring smooth and precise drivetrain performance.

Technical specifications

• Shimano Reference: SM-EW90-A

• Weight: Lightweight and compact, designed to avoid adding bulk to your bike

• Materials: High-quality components for durability and shock resistance

• Maintenance: Easy to connect and disconnect for servicing or Di2 system updates

Why choose this Shimano junction box ?

The Shimano junction box is a key component of the Di2 electronic drivetrain. It ensures optimal signal flow between your battery and derailleurs, delivering ultra-fast and precise gear changes even under heavy load. Its compact and waterproof design makes it an ideal choice for all types of riding, from competitive road cycling to long rides in all weather conditions.

Enhance your Shimano drivetrain and enjoy a smooth, uncompromising Di2 experience with the SM-EW90-A.