SRAM Rival eTap AXS 12 Speed Rear DerailleurBenefitting from wireless electronic eTap shift logic, this 12 speed rear derailleur provides intuitive shifting, easy setup and reliability on your road bike. SRAM has also equipped this model with a rock-solid aluminium cage with steel pulley bearings, so you’ll benefit from the best balance of strength, durability and performance on every mile of road. SRAM AXS Enabled Road Bike Rear DerailleurThis rear derailleur is low on complexity, but rich with features. SRAM has equipped it with its renowned AXS wireless technology, which allows for easy personalisation and control on your road bike. Thanks to its eTap shift logic, it delivers intuitive shifting, easy setup and reliability that has been proven at the highest levels. AXS technology means personalisation is in your hands.The precision and reliability of 12-speed eTap AXS, now at a whole new level. On any surface you can imagine, in any drivetrain configuration, the Rival eTap AXS rear derailleur will handle it. Secure chain management and fast, precise shifting make for a smooth and quiet ride, every time.- Wireless electronic eTap shift logic for intuitive shifting, easy setup and reliability- Compatible with both 1x and 2x drivetrains- 36t cog max derailleur works with 10-28, 10-30, 10-33, and 10-36 cassettes- SRAM AXS enabled, allowing easy personalisation- Chain management keeps the drivetrain quiet and secure- X-SYNC pulleys for increased durability and efficiencyFeatures: Cage Material: Aluminium Pulley Bearings Material: Steel Use: Road Speed: 12 speed Cage: Medium cage Max Tooth: 36 Battery Included: Not included, battery available separatelyTechnologies: AXS Enabled: AXS is SRAM’s bike component integration system that connects electronic bicycle components and software. Control: AXS lets you connect your AXS-enabled components to a mobile app, where you can assign custom actions to your controls. Everything speaks the same language, and you can even combine road and mountain bike parts to build the party bike of your dreams. Personalise: Wireless controls open the door to new levels of customisation. With AXS, you can personalise your component behavior to match your riding style and preferences. Turn on enhanced shifting modes, or reassign shifting actions. Measure: The AXP Mobile App and AXS Web allow you to monitor your bike’s performance and readiness. It’s an easy way to keep tabs on your battery levels—including the CR2032 batteries in eTap shift levers—and keep AXS component firmware up-to-date. AXS Web analyses your ride files specific to shifting, gear use, power zones, and tyre pressure, so that you can quickly and easily learn more about how your bike is working for you and consider adjustments.Buy SRAM Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.