Is This New 12-Speed Electronic Drivetrain the Death of the Derailleur Hanger?

This article originally appeared on Outside

After months of hype, leaks, rumors, and speculation, SRAM’s new Eagle Transmission has officially launched. It’s an entirely new 12-speed electronic drivetrain, free of any wires, derailleur hangers, limit screws, or B-tension adjustments. Three groupsets are being released-XX SL, XX, and XO.

I spent the last 6 months using and abusing the XO drivetrain in and around Bellingham, Washington. During that time period, I racked up over 1,000 miles (1609 km) and 175,000 vertical feet (53,340 m) of climbing over the course of 65 rides. Those miles included lots of rain, more snow than I would have liked, and a healthy dose of magical hero dirt to round things out.

The video above gives a look at the basics of the new groupset, and goes into my riding impressions. For the full in-depth review and development story, head over to pinkbike.com.

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