SRAM's Red eTap AXS 1x HRD Groupset is what gravel cyclists, all-road warriors, and cyclocross racers have been asking for, for years. Namely, keep the same simple shifting logic, but add the ability to customize it and throw in some chain management. Mission accomplished. This intuitive new groupset not only adds another cog, but it also allows for customization and, thanks to its AXS integration, even lets it play with SRAM's AXS Eagle mountain bike components making it better suited to cyclists taking their rigs off the beaten path. Did we mention how easy it is to set up and travel with since there's no cables or wires to deal with too This group includes right and left Red eTap AXS HRD brake/shifters with your choice of either flat mount or post mount calipers, two 160mm Centerline XR 6-bolt disc rotors, rear Red eTap AXS derailleur with battery, a battery charger, and a cord. You will still need to purchase a crank, bottom bracket, cassette, and chain.One of the most exciting new features with the group is its AXS integration. Once you connect the group to the AXS app via Bluetooth on your smartphone or tablet, you can easily personalize the groupset including button customization and numbers of up or downshifts when the buttons are held down. Additionally, it allows you to view battery status, get maintenance reminders, and update the firmware. AXS even lets you mix and match road and mountain bike components for a completely customized ride.The HRD shift/brake levers offer the same fully wireless, simple and intuitive electronic shifting with fully hydraulic disc braking as the outgoing eTap with some new features. The before mentioned AXS integration allows for customization and the shifting paddles are now larger with a new textured for an improved feel while receiving two Blip ports each. Fit and lever preferences are easily adjusted with SRAM's Contact Point Adjustment and Reach Adjust technologies and when it comes time to bleed, SRAM's Bleeding ...