Engineered for the SRAM 8-bolt Direct Mount interface, the Stone Aero chainring seamlessly replaces entry-level stamped SRAM models to deliver crisp power transfer and flawless Flattop 12/13s chain retention.
Stone Aero 1x Chainring for SRAM Road & XPLR 12-13s
Engineered to maximize stiffness and streamline the aerodynamics of your SRAM crankset, the Stone Aero chainring mounts directly onto 8-bolt SRAM or Stone crank arms. CNC-machined from a solid block of aircraft-grade 7075-T651 aluminum, it eliminates the lateral flex experienced on entry-level stamped sheet-metal chainrings. Its narrow-wide tooth profile locks the Flattop chain in place to prevent chain drops on rough roads and gravel terrain.
Key Features
Aleris 7075-T651 Aluminum: Aircraft-grade alloy sourced from US manufacturer Aleris (supplier to Airbus and Boeing), providing maximum structural stiffness under heavy loads and increased tooth wear resistance.
0.03 mm CNC Machining: Ultra-precise manufacturing tolerances achieved through German and Taiwanese equipment for perfect chainline alignment and silent operation.
Solid Aero Profile: Optimized airflow penetration and visual coverage of the spider for a clean drivetrain finish.
Narrow-Wide Tooth Profile: Alternating wide and narrow teeth ensure continuous chain retention without requiring an external chain guide.
SRAM 8-Bolt Interface: Direct mount fitment on SRAM Road, XPLR, Rival, Force, RED, or compatible Stone crank arms.
Compatibility
Compatible with SRAM Road and XPLR cranksets featuring the 8-bolt Direct Mount interface (Rival AXS, Force AXS, RED AXS, Apex 1 AXS). Works with SRAM Flattop 12-speed and 13-speed chains, as well as standard 10 to 12-speed chains (Shimano, KMC, YBN). Not compatible with MTB T-Type drivetrains or 3-bolt mount interfaces.
For installation, respect the 4 Nm torque spec on the SRAM mounting bolts. Need advice on choosing tooth count or chainline for your build? Contact us.
