System Information Display - Junction A

SC-M9051 - System Information Display - Junction A image

The SC-M9051 System Information Display shows you what gear you're in, has a battery level indicator, charging port, synchronized shift mode display and also doubles as a Junction A - it has 3 e-Tube ports for you to connect components to it. The displays lets you charge the system and also connect to it using Bluetooth or ANT+.

It supports both 31.8mm and 35mm diameter handlebars.

If you're thinking of using this display on your road bike to replace your Junction A (SM-EW90 / EW-RS910) and Wireless Unit - you can! Be aware that you can only have one component with wireless/bluetooth functionality connected. If you connect both this and a Wireless Unit the Di2 system won't function.

Functionality wise this unit is identical to its cheaper XT sibling, the SC-MT800. The casing is not, but that is the only difference.

Synchronized shifting on mountain bikes

If you want to use synchronized shifting on your mountain bike the usual requirements apply - you need either a BT-DN110 battery or BM-DN100 battery mount. You will also need a System Information Display. It is not clear why exactly you need one, but I've asked Shimano and they have confirmed that a display is required for synchro shift on mountain bikes.

Details & Specifications

Shimano model number:SC-M9051
Weight:30 g
E-Tube ports:3
E-Tube Port type:SD50
Type:Junction A
Component series:XTR M9050 (MTB)
Downloads:XTR M9050 Dealer Manual
Information Display User Manual

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