The Shimano SW-R671-R is a right-hand remote shift switch designed specifically for time trial and triathlon riders who need precise Di2 electronic shifting while staying locked in the aero position. Mounted at the end of your aero extension bar, it puts full control of both derailleurs at your fingertips without lifting out of your tuck.

Highlights

• Aero-position shifting: Mounts directly to the end of your TT/triathlon extension bars so you can shift without breaking your aero position.
• 2-button control: Two dedicated buttons provide independent upshift and downshift — no synchronised shift mode required.
• Di2 electronic precision: Instant, light-touch actuation with a single-click feel; the derailleur does the work with consistent, repeatable shifts every time.
• E-Tube compatible: Plugs directly into the Di2 E-Tube network via the included EW-SD50 wire (620mm).
• Broad Di2 compatibility: Works with 10-speed and 11-speed Di2 systems including Dura-Ace 9070 and Ultegra 6870/6870 series.
• Lightweight: Compact, low-profile design adds minimal weight to your cockpit.

Design & Integration

The SW-R671-R connects to the Di2 E-Tube network through a single EW-SD50 port, routing neatly through or alongside the aero bar. The switch body is shaped to sit cleanly at the bar end without snagging on your kit, and the two buttons are intuitively positioned for thumb or fingertip actuation. Sold as a right-hand unit only — pair with the SW-R671-L for full bilateral control.

Compatibility & Fit

Compatible with Shimano 10-speed and 11-speed Di2 electronic groupsets, including Dura-Ace Di2 9070 and Ultegra Di2 6870 series. Not compatible with Dura-Ace 7970 Di2 or 12-speed Di2 systems. Connects via EW-SD50 wire (included, 620mm). Plugs into any Di2 E-Tube junction box (EW-90A or EW-90B). Right-hand unit only.