Shimano | Di2 Sm-Ew90 Junction Box A 3-Port

Shimano | Di2 Sm-Ew90 Junction Box A 3-Port Di2 SM-EW90 Junction Box A Expand your secondary shift options with the Di2 SM-EW90 Junction Box. The junction box mounts directly below the handlebar, making wiring up a set of secondary shifters easy and making it all possible with minimal cabling. Available in a 3 or 5 port version, the SM-EW90 is the gateway to the ultimate Di2 expansion. Features: Expands Di2 systems to accomodate secondary shift buttons 3 or 5 port version Acts as a charging port for 's internal SM-BTR2 Di2 battery (not included). | | Di2 Sm-Ew90 Junction Box A 3-Port Retail Price: $140.00, Sale Price: $114.99 a 18% savings! Order Online Here UPC: 689228725553 SKU: EL235E00 3_USA_FREE

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Shimano Di2 SM-EW90 Junction Box A 3-Port Review

The Shimano Di2 SM-EW90 Junction Box A 3-Port is an essential component for cyclists looking to expand their Shimano Di2 electronic shifting system. Designed for seamless integration and enhanced functionality, this junction box allows for the addition of secondary shift buttons, providing greater control and versatility during rides.

Key Features

• 3-Port Configuration: Offers three ports for connecting additional shifters, enhancing versatility.
• Direct Mounting: Easily mounts below the handlebar, simplifying the wiring process and reducing clutter.
• Charging Capability: Serves as a charging port for Shimano's internal SM-BTR2 Di2 battery (battery sold separately), ensuring your system stays powered.
• Minimal Cabling: Designed to minimize the amount of cabling required, maintaining a clean and streamlined appearance on your bike.

Benefits

The primary benefit of the SM-EW90 Junction Box A is its ability to expand the functionality of your Di2 system significantly. By allowing the addition of secondary shifters, it provides cyclists with the ability to customize their shifting experience, which is particularly beneficial for those who ride in varied terrains or prefer different hand positions. The ease of installation and minimal wiring also contribute to a neater bike setup, improving both aesthetics and functionality.

Potential Drawbacks

While the SM-EW90 offers many advantages, there are some potential drawbacks to consider:

• Limited to Shimano Systems: Designed specifically for Shimano Di2 systems, it may not be compatible with other brands.
• Additional Costs: The need for a separate battery (SM-BTR2) can add to the overall cost of integrating this junction box into your setup.

Comparison to Similar Products

Compared to other junction boxes on the market, such as the Di2 SM-EW90B (5-Port version), the SM-EW90A's 3-port design offers a more compact solution for those who may not need as many additional connections. While the 5-port version is more versatile for advanced setups, the 3-port option is more than adequate for most riders looking to add secondary controls without overwhelming their system.

Practical Tips for Use

1. Optimal Placement: Position the junction box in an easily accessible area to facilitate quick adjustments while riding.
2. Secure Connections: Ensure all connections are tightly secured to prevent any shifting issues during rides.
3. Regular Charging: Make it a habit to check battery levels and charge the SM-BTR2 regularly to avoid interruptions on long rides.

Complementary Products

Customers often purchase the following products in conjunction with the SM-EW90 Junction Box:

• Shimano SM-BTR2 Di2 Battery: Essential for powering the Di2 system.
• Shimano Di2 Secondary Shifters: Perfectly compatible secondary buttons that enhance the shifting experience.
• Shimano Di2 Cables: Ensuring that all connections are secure and of high quality.

Using these products together ensures a complete and efficient Di2 setup that maximizes performance and user satisfaction.

Current Trends and Innovations

As electronic shifting systems gain popularity in the cycling community, the trend is moving towards more integrated and user-friendly designs. The Shimano Di2 SM-EW90 Junction Box A aligns with this trend by simplifying installation and offering customizable options. Innovations in battery technology and software integration are also paving the way for enhanced electronic shifting capabilities, making the SM-EW90 a relevant and forward-thinking choice for cyclists.