Disc Brake Dual Control Lever (Wireless)

GRX ST-RX825

Twelve-speed GRX Shift levers feature one SD300 port, one satellite shifter port, and three shift buttons.

The third button isn't on top of the shifter but on the inside, where you would rest your thumbs.

Like the 105 Di2 shifters, these GRX units take two CR1632 batteries. They should last for about 3.5 - 4 years.

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Wired compatibility

If you've looked at the compatibility information for 12-speed Di2 then you might've noticed that ST-RX825 has no official wired compatibility.

Regardless of what the compatibility information says, you can in fact wire up these shifters no problem. They'll show up in E-Tube Project as you'd expect, and shift wired just fine.

Specifications

Model code: ST-RX825
Series: GRX RX825
Weight: 207g (per shifter)
SD300 ports: 1
SD300 satellite shifter ports: 1
Battery: CR1632 (2 per shifter)
Wired shifting: Maybe? (see description)
Wireless shifting: Yes
Servo wave: Yes
Free stroke adjust: Yes
Reach adjust: Yes
Brake type: Disc

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FD-RX825

Front Derailleur

FC-RX820-2

2x12 Gravel Crankset

RD-RX825

Rear Derailleur

BT-DN300

Internal Battery

EW-SD300

Electric Wire / E-Tube cable

SW-RS801-S

Satellite Drops Sprint Shifter (12-speed)

SW-RS801-E

Clip-on Aero Bar Satellite Shifter (12 speed)

SW-RS801-T

Satellite Tops Shifter (12 speed)

TL-EW300

Cable plug tool for Di2

EW-EC300

Internal Battery Charging Cable

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