Sram Red eTap AXS 12S rear derailleur
The heart of the connected cadre
The Sram Red eTap AXS™ rear derailleur is AXS enabled for easy personalization and designed for both 1x and 2x systems. Advanced chain management keeps it silent and secure no matter the terrain. The derailleur also comes with faster pulleys, bearings, motors and signals, improving speed in every way.
Features
- Sram AXS™ enabled for easy personalization.
- Orbit™ chain management technology keeps drivetrain quiet and secure.
- A single rear derailleur for all gearing combinations, including 1x and 2x.
- Improved motor and signal travel for faster shifting.
- Larger X-Sync™ pulleys and ceramic bearings for increased durability and efficiency.
- Compatible with existing eTap® batteries.
- Speed: 12s.
- Short cage: 33t-max is compatible with cassettes 10-26, 10-28 and 10-33.
- Medium cage: 36t-max is compatible with cassettes 10-36, 10-33 and 10-28.
- Pulley bearings material: ceramic.
- Cage material: carbon.
- Approximate weight: 279 g.
- Battery NOT included.
Technologies
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. Sram 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.
AXS™
AXS™ is Sram’s new electronic integration platform 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.
Orbit™
Orbit™ technology is an innovative new form of derailleur motion control. It utilizes silicon fluid as part of an elegant and ultra-lightweight damper system. Compared to a standard friction clutch system, Orbit technology places no additional resistance on the rear derailleur’s spring when under slow or light movement. This means easier shifting and rear wheel removal. And while riding, the fluid damper reduces chain bounce. It’s rock-solid reliability for both 1x and 2x systems.
X-Sync
Sram X-Sync™ 1x chain rings 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™ chain rings 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.
eTap®
All of the underlying tech in our new Sram Red eTap groupset such as wireless shifting, advanced battery power management and mechatronics technologies are all 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.