
Interestingly, the updated Red design is based on the Force AXS caliper that debuted this past April, which uses two separate forged aluminum halves that are held together with separate hardware.

Both caliper types will come standard with Ti hardware.” The original SRAM Red eTap AXS flat-mount disc-brake caliper used a one-piece forged aluminum body. SRAM RED eTap AXS HRD post-mount brakes will remain using our one-piece, monoblock caliper. “This change took place on July 15, 2019. “SRAM made a running change to its RED eTap AXS HRD flat-mount disc brake caliper,” admitted SRAM’s senior corporate and North American road communications manager Michael Zellmann when we inquired about the brakes we spotted on team bikes at the recent Santos Tour Down Under. Brakes: Sram Red HDR flatmount remmen including hydraulic brake lines (bled)SRAM’s flagship Red eTap AXS road groupset was originally launched with the same one-piece forged aluminum hydraulic disc-brake calipers used on the previous-generation Red eTap, but those have quietly been replaced with a newer two-piece unit that supposedly offers better performance and easier setup.This way you can buy all the components you need and you don't have to buy anything you don't already have. This Upgrade Kit consists of the 4 components together with Hydro flatmount brakes, battery charger, and firmware updater. The Sram Red eTAP Hydro brake needs less manual power than traditional brakes and offers superior stopping power under all conditions.

The Sram Red 22 eTAP HRD shifters offer wireless, electronic shifting with unprecedented ergonomics in combination with the braking power of hydraulic disc brakes.

With Formula 1, the pinnacle of motorsport, as their source of inspiration, and by asking the right questions without fearing the answers, Sram has created the latest revolution in bike components. Right shifts to heavier gear, the left to a lower gear and press both at once to change to a different chainring. The Red eTAP essentially consists of 4 components that work together seamlessly and wireless. The Sram Red eTAP HRD Disc Upgradekit takes your bike to the next level.
