Shimano Dura Ace ST-R9250 Shift Lever

No, the ST-R9250 levers are specifically designed for rim brake systems only. If you are running disc brakes, you will need the hydraulic version of the Dura-Ace Di2 levers.

Yes, this model utilizes a wired connection via Shimano's SD300 ports. While the shifting itself is electronic, the levers must be physically connected to the system's battery and derailleurs to function.

Yes, the ST-R9250 features adjustable lever reach. This allows you to customize the distance between the lever and the handlebar, ensuring a comfortable and secure grip regardless of your hand size.

No, these levers are part of the 12-speed ecosystem and are not backward compatible with 11-speed Di2 components. They are designed exclusively for use with the 12-speed Dura-Ace R9200 series drivetrain.

You can update the firmware using Shimano's E-TUBE PROJECT app. By connecting your bike to the app via a smartphone or PC, you can easily manage settings and install the latest firmware updates.

The carbon fiber reinforced plastic construction significantly reduces weight without sacrificing structural integrity. This helps keep your bike's overall weight down while providing a stiff, responsive feel during gear changes.