SRAM RED XPLR AXS Crank Arm Assembly
Best lightweight upgrade for serious gravel cyclists seeking peak performance.
This is the ultimate upgrade for gravel racers who prioritize raw speed and weight savings over gear range. By stripping the drivetrain down to a single ring, you gain a stiffer, more responsive pedaling platform, though you sacrifice the granular cadence control found in traditional two-ring setups.
$440.00
Who it's for
- Weight-conscious gravel racers seeking every possible performance advantage
- Riders already invested in the SRAM AXS wireless electronic ecosystem
- Aggressive gravel cyclists who demand lightweight gear that lasts
Who should skip it
- Budget-focused cyclists looking for the best value-to-performance ratio
- Cyclists who prefer mixing components from different drivetrain manufacturers
- Aesthetic-focused riders who want their equipment to look brand new
Performance breakdown
Weight Efficiency
Hollow carbon construction sets a benchmark for ultra-light gravel performance.
Power Transfer
Stiff carbon arms ensure every watt translates directly to forward motion.
Chain Security
X-SYNC tooth profile keeps the chain locked in through rough terrain.
Drivetrain Simplicity
Single-ring setup eliminates front shifting complexity for cleaner, faster rides.
Terrain Versatility
Wide spacing accommodates the larger tires needed for mixed-surface racing.
System Compatibility
DUB standard offers robust, reliable integration across most modern gravel frames.
Key Specs
Intended Use
Gravel
Crank Arm Length
155 mm
Material
Carbon Fiber
Crank Construction
Hollow
Number of Chainrings
1
Spindle Diameter
29 mm
Bottom Bracket Interface
DUB
Chainline
47.5 mm
Drivetrain Speed Compatibility
13-speed
Pedal Thread
9/16 inches
Know before you buy
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