SHIMANO SM-EW90-A Di2 JUNCTION(A) BOX 3 PORT
The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contamination, corrosion, and stretching, but provides effortless gear shifts
This junction A is required to connect the shifters via E-tube wires to the down tube junction wire
3-port design, one for down tube 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
Stem mounting strap included
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SHIMANO - JUNCTION A - E-TUBE - UNDER STEM MOUNT - 3-PORT
SHIMANO's SM-EW90-A 3-port Junction A mounts neatly to the bike stem and connects with E-TUBE wires from DI2 shifters and the downtube junction wire. The SM-EW90 junction box features an integrated battery level indicator, charging port, and gear index setup switch.
PRODUCT SPECIFICATIONS
| MODEL NO | SM-EW90-A |
| SERIES | DURA-ACE 9070 Series |
| Average weight | 10 |
| Charging port (pcs) | 1 |
| Firmware update by E-TUBE PROJECT | ✔ |
| Connector for remote sprinter shifter (QTY) | 0 |
| Function_Adjust mode display | ✔ |
| Function_DI2 Battery level | ✔ |
| Function_E-TUBE connection | ✔ |
| Function_Gear position | ✔ |
| Port for remote sprinter shifter (QTY) | 0 |
| Position | Under stem |
| Type | External type |
| Compatible system | E-TUBE |
| Compatible electric wire | EW-SD50 |
| SD300 connector (pcs) | 0 |
| SD300 port (pcs) | 0 |
| SD50 connector (pcs) | 0 |
| SD50 port (pcs) | 3 |
TECHNOLOGIES
