Sram red etap axs

When SRAM launched the original RED eTap in 2015, one of its most exciting features was that it was wireless. Now, we’ve taken eTap wireless to the next level with AXS. AXS™ is SRAM’s new bike component integration system that connects electronic bicycle components and software.

Even if you ride a bike to escape modern technology, here’s how AXS can improve your ride:


AXS lets you connect your AXS-enabled components to an app. Everything speaks the same language, and you can even combine road and mountain bike parts to build the party bike of your dreams.


Wireless controls open the door to new levels of customization. With AXS, you can personalize your component behavior to match your riding style and preferences. Turn on enhanced shifting modes, or reassign shifting actions. (More on that later.)


AXS allows 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.

Compensating shifting smooths gear transitions. When a front gear change is performed, the rear derailleur compensates for the large change in gear ratio by shifting one or two cogs (you get to choose how many), keeping your pedaling cadence steady.

Within the AXS app, shifting actions can be reassigned to new buttons on the shifters using the Configure Controls environment. This mode allows riders to have the most control over how and when they shift. Want your right eTap shift lever to shift to an easier gear instead of a harder one? Or to raise and lower your wireless-electronic dropper post from your levers? Yeah, AXS lets you do that.

Whether you’re a technophobe or a technophile, AXS is here for one sole reason: to help you forget about bike parts, and simply enjoy a better bike ride.


What if you could add range to your drivetrain while also smoothing the gear progression with smaller differences in tooth count between neighboring gears? And what if you could gain that without losing drivetrain efficiency or having to replace your chain more frequently? Our unique Flattop chain link design is a key element that makes all of these improvements possible.

To gain a wider gear range with smaller gearing steps, the chain has to get narrower. With Flattop, we’ve added material on the flat side of the chain plates to strengthen every link. The Hard Chrome surface treatment on the pins, inner plates, and rollers also extends the life of the chain and keeps it shifting precisely over the long haul. Additionally, Flattop chains feature longer wearing large diameter rollers that help deliver the same drivetrain efficiency as our 11-speed drivetrains. All of these technologies together have enabled us to engineer a narrower 12-speed chain that lasts 36% longer than our 11-speed chains.

To find out more about the different groupset configurations contact us at:

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