SRAM RED 1 AXS Road Bike Crankset 172.5mm 40T 107BCD Drivetrain

The SRAM RED 1 AXS Crankset redefines performance for road cyclists seeking uncompromising efficiency and simplicity in flat or rolling terrain. Engineered for electronic shifting precision, this single-ring drivetrain delivers a streamlined setup ideal for road racing, triathlon training, or cyclocross events where quick transitions and minimal maintenance are critical. Weighing less than traditional multi-chainring systems while maintaining stiffness and power transfer, it’s designed for riders prioritizing speed and aerodynamics without sacrificing gear range—perfect for courses where a narrow ratio remains optimal.

At its core lies SRAM’s X-SYNC 2.0 chainring technology—a wide-narrow-tooth profile that grips the chain securely under high torque, reducing slippage even during aggressive sprints or technical descents. The 40T ring pairs seamlessly with 12-speed drivetrains (including AXS wireless systems), offering smooth shifts and a gear range tailored to flat or slightly undulating routes. Built around SRAM’s DUB spindle interface (9/16″), it’s compatible with modern road disc hubs (135/142mm) and frames featuring chainstays under 415mm, ensuring precise chainline alignment for optimal power transfer.

While many competitors prioritize complex multi-ring setups for varied terrain, the RED 1 AXS focuses on precision for specialized riders: road racers chasing podium finishes, triathletes streamlining equipment weight, or cyclocross enthusiasts needing durability without bulk. Unlike mechanical systems requiring frequent adjustments, its electronic integration offers instant shifts—ideal for high-speed accelerations during breakaways or time trials.

Key Advantages vs Competitors
| Feature | SRAM RED 1 AXS | Shimano Dura-Ace 9150 |
|————————|————————-|—————————-|
| Shifting Technology | Wireless AXS Electronic | Mechanical or Di2 Electronic |
| Weight (40T) | 540g (approx.) | 580g (Di2 crank) |
| Power Meter Option | Built-in upgrade | Requires separate purchase |
| Chainring Tech | X-SYNC 2.0 | Hollowtech II + Ultegra Ring |

This crankset isn’t just a component—it’s a performance upgrade for riders demanding reliability in high-stakes scenarios. Whether conquering flat stages in a century ride or refining your triathlon split times, its lightweight design and electronic responsiveness deliver an edge that traditional setups can’t match. Pair it with SRAM’s power meter module to track every watt on your next endurance challenge—because when seconds count, precision matters most.