SRAM Rival AXS E1 212-Speed Power Meter Groupset Brand: SRAM Series: Rival AXS E1 Drivetrain: 212-speed with Power Meter Shifting: Wireless electronic (AXS) Braking: Hydraulic disc (HRD) Product Overview The SRAM Rival AXS E1 212-Speed Groupset delivers fully wireless electronic shifting and confident hydraulic disc braking in a performance-focused, accessible package. Built on SRAM’s AXS ecosystem and eTap shift logic, the E1 generation introduces refined ergonomics, reduced braking effort, and improved hood comfortbringing flagship-level usability to the Rival tier. Designed around X-Range gearing , the system pairs closely spaced chainrings with a wide-range 10T-start cassette to maintain smooth cadence progression while offering substantial overall range. With simple wireless setup, app-based customization, and proven hydraulic braking performance, Rival AXS E1 is equally suited to endurance road bikes, modern race builds, and all-road applications. Key Features Wireless AXS shifting - clean cockpit, fast setup, and reliable performance eTap shift logic - intuitive control: right = harder, left = easier, both = front shift E1 brake lever ergonomics - one-finger braking from hoods or drops, reduced lever effort X-Range gearing - wide range with consistent cadence steps Hydraulic disc brakes (HRD) - powerful, controlled braking in all conditions AXS app compatible - component pairing, button mapping, firmware updates, battery status Spindle based power meter - accessible power measurement, get the data you need to progress Included Components Rival AXS HRD shift-brake levers (left & right) Rival AXS rear derailleur (12-speed) Rival AXS front derailleur (2) Rival E1 crankset with integrated 2 chainrings and spindle based power meter Rival XG-1250 X-Range cassette (10-30T or 10-36T) Rival Flattop E1 road chain with PowerLock SRAM AXS batteries (2) and USB charger Bottom bracket and rotors, are sold separately. Technical Specifications Shifting & Braking Shifting system: Wireless electronic (AXS) Speeds: 212 Brake type: Hydraulic disc Lever features: Reach adjust, textured hoods, redesigned pivot geometry Crankset & Chainrings Chainring options: 46/33T or 48/35T Chainline: 45.0 mm Crank lengths: 160, 165, 170, 172.5, 175 mm Spindle interface: DUB with Power Meter Cassette Model: XG-1250 X-Range Options: 10-30T (road-focused cadence steps) 10-36T (expanded climbing range) Freehub body: XDR required Chain Type: Road Flattop E1 Connector: PowerLock Compatibility: 12-speed road AXS Compatibility Freehub: XDR (required for 10T-start cassette) Bottom bracket: SRAM Road DUB (frame-specific standard required) Front derailleur mount: Braze-on Brake mounts: Flat mount (frame and fork dependent) Rotor compatibility: SRAM Paceline recommended (Center Lock; 140 or 160 mm) Ideal For Endurance and performance road bikes Riders seeking electronic shifting without mechanical complexity Mixed-terrain road and all-road builds requiring wide gearing Clean, modern cockpits with minimal cabling What’s in the Box Complete Rival AXS E1 electronic drivetrain and controls Two rechargeable AXS batteries and charger Chain and cassette selected per configuration Notes for Buyers Verify frame compatibility (flat-mount brakes, DUB BB standard, FD mount). Confirm wheel freehub is XDR-compatible. Rotor size selection should follow frame/fork manufacturer limits.