Perfection is a moving target, and SRAM just moved it again. SRAM took the industry’s lightest, stiffest crankset and re-engineered the hollow carbon layup to shave every superfluous gram without sacrificing a watt of power, creating the SRAM Red AXS (FC-RED-E1) 2x12 Crankset. Responding to the latest biomechanical data, They introduced a 160mm carbon arm option to optimize hip angles and aerodynamics. Paired with their X-Range gearing philosophy—which minimizes cadence disruption during front shifts—this crankset ensures that your power transfer remains seamless and absolute.
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Features:
- One-piece 2x chainring results in a lighter weight, stiffer, more durable crankset
- 29 g lighter than the previous generation
- X-Range gearing technology gives you more range and a smoother gear progression, so you’re always in the right gear
- Crisp and accurate front shifts
- Ultra-light hollow carbon fiber crankarms
- DUB bottom bracket adds durability and simplicity
- 50/37T, 48/35T and 46/33T chainring combos available
- Can be upgraded to a power meter
- Available in 150, 155, 160, 165, 167.5, 170, 172.5, and 175 mm lengths
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Specifications:
| SPEEDS | 12 |
|---|---|
| BB COMPATIBILITY | All SRAM Road DUB BBs |
| CHAINRING SIZE | 46/33T, 48/35T, 50/37T |
| CRANK ARM LENGTH | 160mm, 165mm, 167.5mm, 170mm, 172.5mm, 175mm |
| CHAINLINE | 45.0mm |
| BB SPINDLE INTERFACE | DUB |
| CHAINRING MATERIAL | Aluminum |
| BOLT CIRCLE DIAMETER (BCD) | Direct Mount (DM) |
| POWER METER | No |
| POWER METER TYPE | n/a |
| CHAINRING OFFSET | n/a |
| BOTTOM BRACKET TECHNOLOGY | DUB |
| CRANKSETS TYPE | Road |
| CHAIN TECHNOLOGY | Road Flattop D1, Road Flattop E1 |
| DRIVETRAIN CONFIGURATION | 2x |
| TECHNOLOGY (FD) | Road-Yaw |
| FRONT TOOTH JUMP | 13 |
| WEIGHT (G) | 545 |
| WEIGHT BASED ON | 172.5mm length with 48/35 chainrings |