Rear derailleur SRAM Rival XPLR eTap AXS D1 12-speed

Wireless electronic eTap shift logic for intuitive shifting, easy setup, and reliability.

1x specific for use with 10-44T XPLR and 10-36T cassettes and Flattop chains. Not compatible with Eagle cassettes and chains.

SRAM AXS enabled, allowing easy personalization.

Chain management keeps the drivetrain quiet and secure.

Large X-SYNC pulleys for increased durability and efficiency.

Compatible with existing eTap batteries.

TECHNOLOGIES

X-SYNC - SRAM X-SYNC 1x chainrings provide the highest level of performance and durability. The SRAM X-SYNC tall square teeth edges engage the chain earlier than traditional triangle shaped teeth. The sharp and narrow tooth profile, as well as rounded chamfer edges, help manage a deflected chain, To provide the best possible performance in muddy conditions, the X-SYNC chainrings have been designed with mud-clearing recesses for the inner chain links and rollers. Engineered in Germany, X-SYNC rings are an integral part of the SRAM 1x drivetrain. Accept no imitation.

eTap - All of the underlying tech in our SRAM RED eTap groupset, such as wireless shifting, advanced battery power management, and mechatronics technologies, are meant to serve one ultimate purpose: to facilitate the most intuitive and consistent shifting available. This shift logic is called eTap. Right lever makes it harder, left lever makes it easier, both levers shift the front derailleur. Simple, unmistakable, and intuitive.

AXS - AXS is SRAM's bike component integration system that connects electronic bicycle components and software. The SRAM AXS app allows riders to see battery status, change component behavior, personalize controls, get maintenance reminders, and update firmware.

X-Range - Road bikes are faster and more capable than ever before, and riders are expanding what's possible with drop bar bikes. X-Range is gearing for today's road riding. We completely reimagined road gearing for wider range, more useful and smoother gear progression, as well as smarter shift settings - enabled by AXS. With X-Range, you're always in the right gear.