Shimano 12-speed satellite shifters are tiny buttons or shifters that you can place in the drops, on the tops, or on your aero extensions. This page explains how to install the different satellite shifters and how to wrap the handlebar tape around them.
Rim Brake Dual Control Lever (Wired)
The DURA-ACE ST-R9250 rim brake levers weigh about 230g for a pair of levers.
They're essentially the same as the previous generation DURA-ACE levers, except for the fact that they'll work with the 12-speed derailleurs - using the SD300 port type.
Since these 12-speed rim brake shifters are essentially the previous generation shifters, they do not feature wireless shifting. You can only connect them to a Di2 system using EW-SD300 wires.
- Model code: ST-R9250
- Series: DURA-ACE (R9200)
- Weight: 115g (per shifter)
- Speeds: 12
- Number of switches: 3
- SD300 ports: 2
- Satellite Shifter ports: 1
- Reach adjust: Yes
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Modern Di2 shift levers have buttons on top of the hoods, but unless you're on 12-speed Di2, their default function only works with a wireless unit or d-fly. Learn how to set these buttons to shift derailleurs.