How to Install, Adjust, and Maintain the Shimano SW-R9160 Remote Shifting Switch

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in Shimano

The Shimano SW-R9160 remote shifting switch is designed for time trial (TT) and triathlon bikes, allowing riders to shift gears without moving their hands from the aero extensions. As part of the DURA-ACE Di2 electronic groupset, this lightweight, aerodynamic, and precise shifting system enhances performance by enabling quick gear changes in aggressive riding positions. Proper installation, adjustment, and maintenance of the SW-R9160 remote shifting switch ensure reliable operation and long-term durability. This guide provides step-by-step instructions on how to install, adjust, and maintain the Shimano SW-R9160 remote shifting switch.

Tools Required

To install and maintain the Shimano SW-R9160 remote shifting switch, you will need:

  • 2 mm hexagon wrench
  • 3 mm hexagon wrench
  • 5 mm hexagon wrench
  • Torque wrench [paid link]
  • Shimano TL-EW02 tool (for E-TUBE connections)
  • Isopropyl alcohol and clean rags
  • Double-sided tape or zip ties

Installing the Shimano SW-R9160 Remote Shifting Switch

Mounting the Switch to Aero Bars

Before installing the SW-R9160 remote shifting switch, ensure that your aero extensions are clean and dry. Correct placement improves aerodynamic efficiency and shifting response.

  1. Determine the installation location:
    • The switch is typically positioned at the ends of the aero extensions, allowing easy access during time trial efforts.
  2. Secure the switch to the handlebar:
    • Insert the SW-R9160 switch into the aero bar extension end.
    • Use a 2 mm hex wrench to secure the switch with the built-in clamp.
  3. Connect the switch to the Di2 system:
    • Route the E-TUBE cable inside the aero bar and connect it to the junction box (SM-EW90-A [paid link]/B or EW-RS910 [paid link]).
    • Use the Shimano TL-EW02 tool to ensure the E-TUBE connector is fully inserted.
  4. Check the connection:
    • Press the shift buttons to confirm proper function.
    • If the system does not respond, check the E-TUBE connection and update the firmware via Shimano’s E-TUBE PROJECT software.

Adjusting the Shimano SW-R9160 Remote Shifting Switch

Customizing Shifting Functions

The SW-R9160 remote shifters allow for customizable button functions via the Shimano E-TUBE PROJECT app.

  1. Connect the bike to E-TUBE PROJECT using a PC, tablet, or smartphone.
  2. Select the SW-R9160 shifting switch from the device list.
  3. Assign shifting functions based on preference:
    • Left switch: Shift front derailleur or move the rear derailleur to an easier gear.
    • Right switch: Shift the rear derailleur to a harder gear.
    • Enable multi-shift mode for continuous gear changes when holding the button.
  4. Save the settings and test the function.

For help with gear shifting problems, refer to Troubleshooting Common Gear Shifting Problems on Your Road Bike.

Maintaining the Shimano SW-R9160 Remote Shifting Switch

Cleaning the Switches and Wiring

Regular cleaning prevents dust buildup and ensures smooth operation.

  1. Wipe down the SW-R9160 switches with isopropyl alcohol and a clean cloth.
  2. Inspect the E-TUBE wiring for damage or loose connections.
  3. If necessary, reattach the wiring using Shimano TL-EW02 tool.

Checking and Updating Firmware

To ensure optimal performance, update the Di2 firmware regularly.

  1. Connect the Di2 system to the Shimano E-TUBE PROJECT software.
  2. Check for firmware updates and install the latest version.
  3. Verify that the SW-R9160 buttons respond correctly.

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