Shimano Di2 EW90 Junction-A Box (3 Port)
- This junction A is required to connect the shifters via E-tube wires to the downtube junction wire
- 3-port design, one for downtube wire to bottom bracket junction, two for shifter connection
- Battery level indicator feature
- E-tube EW-SD50 wires not included
- Additional charging point when using the internal battery
- Gear index setup switch to allow fine-tuning via shifter buttons
- Reliable and secure water-resistant connectors
- Compatible Systems: E-Tube
- Weight: 10g (approx.)
- Part No: SM-EW90-A
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Product Information
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Shipping & Returns

Shimano Di2 EW90 Junction-A Box (3 Port)
Shimano Di2 EW90 Junction-A Box (3 Port)
- This junction A is required to connect the shifters via E-tube wires to the downtube junction wire
- 3-port design, one for downtube wire to bottom bracket junction, two for shifter connection
- Battery level indicator feature
- E-tube EW-SD50 wires not included
- Additional charging point when using the internal battery
- Gear index setup switch to allow fine-tuning via shifter buttons
- Reliable and secure water-resistant connectors
- Compatible Systems: E-Tube
- Weight: 10g (approx.)
- Part No: SM-EW90-A
Original: $79.82
-70%$79.82
$23.95Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
- This junction A is required to connect the shifters via E-tube wires to the downtube junction wire
- 3-port design, one for downtube wire to bottom bracket junction, two for shifter connection
- Battery level indicator feature
- E-tube EW-SD50 wires not included
- Additional charging point when using the internal battery
- Gear index setup switch to allow fine-tuning via shifter buttons
- Reliable and secure water-resistant connectors
- Compatible Systems: E-Tube
- Weight: 10g (approx.)
- Part No: SM-EW90-A













