SRAM Red 1 E1 Aero AXS Powermeter HRD FM groupset 1x12-speed 50

The SRAM Red 1 E1 Aero AXS Powermeter HRD FM complete groupset for a 1x12-speed road drivetrain with a 50-tooth chainring

The SRAM Red 1 E1 Aero AXS Powermeter HRD FM complete groupset, featuring the Red E1 1x12-speed drivetrain, a crankset with carbon arms, an aerodynamic chainring, a power meter spider, and hydraulic disc brakes with Flat Mount fitting, is the ideal complete build for your road bike. The drivetrain is controlled wirelessly for precise, fast shifting, while the hydraulic disc brakes don't just look good — they also deliver powerful stopping performance. The power meter crank helps you keep track of your performance and structure your training effectively. The shift/brake levers are designed to suit different hand sizes and shapes, and both reach and contact point can be adjusted to your needs. Using the AXS app, you can personalize your drivetrain, view performance data, and configure the two additional buttons on the sides of the levers.

Specifications: Series: Red Application: Road Drivetrain: 1x, 12-speed (wireless) Brakes: disc, hydraulic (Flat Mount) Components: Crank: 165.0 mm, 170.0 mm, 172.5 mm, 175.0 mm (50 teeth) Cassette: 10-28, 10-30, 10-33, 10-36 Rear derailleur: medium cage (10-28 to 10-36) Build: The bottom bracket is not included. SRAM recommends the DUB Road bottom bracket. Brake rotors are also not included.

Features: power meter complete groupset with wireless 1x12-speed road drivetrain and hydraulic disc brakes lightweight crank with carbon arms, aerodynamic 50-tooth chainring and power meter function fast, precise-shifting rear derailleur with Orbit damping hydraulic road disc brakes with shift/brake levers efficient Flattop chain with 126 links and PowerLock quick link understated design with polished caliper carbon brake levers optimized grip shape for a secure hold across different hand sizes carbon brake levers for weight savings, 83 g lighter than the previous generation bite point and reach adjustment easy personalization with AXS SRAM DUB bottom bracket system for durability and simplicity shift lever powered by a CR2032 battery to communicate with the rear derailleur Technologies: AXS

AXS is SRAM's electronic integration platform, connecting electronic bike components and software.

Reach Adjust

The fit and ergonomics of the brake lever are a very personal matter. Riders have individual positioning preferences as well as unique hand sizes and finger lengths. With reach adjustment, the lever can be adapted in seconds — for maximum control.

Bleeding Edge

Bleeding Edge technology makes bleeding the brakes fast and easy. Thanks to a dedicated fluid channel and a redesigned bleed port, fluid can be pumped through the caliper more easily. A special adapter fits onto the bleed port and seals the system, preventing air from entering and fluid from leaking out.

Stealth-a-majig

With Stealth-a-majig, routing the hydraulic hose during installation becomes child's play. Its smaller size allows for simple internal cable routing, giving the bike a clean, uncluttered look.

DUB

The unit formed by the crank spindle and bottom bracket is the heart of DUB technology. This is where stiffness meets durability. SRAM took things a step further, making everything simpler and better still. It's chiefly the system approach — integrating chainring, crank, spindle, and bottom bracket — that delivers better drivetrain performance.

X-Range

X-Range technology was developed with the capabilities of today's drop-bar bikes in mind. It stands out through a wide gear range combined with even, smooth shifting. Pairing chainrings spaced 13 teeth apart with a wide-range cassette starting at a 10-tooth cog delivers well-thought-out, consistent gear steps that always put you in the right gear. Combined with AXS, you can make various shifting adjustments and personalize your drivetrain to suit you.

X-Sync

X-Sync tooth design is characterized by long, rounded, tapered tooth edges with a narrow profile. Jockey wheels with X-Sync technology improve chain guidance and remain unaffected by dust and mud.

Orbit

Orbit technology is an innovative form of rear derailleur movement control. It uses silicone flu