Stone Direct Mount Chainring for Easton EC90 SL CINCH Crank — Narrow Wide 9/10/11/12-Speed 3.5mm Offset Gravel / Road Bike
The Stone Direct Mount Chainring is designed for cranksets using the Easton EC90 SL CINCH system interface. It is ideal for gravel and road bike setups, offering precise chain engagement, improved chain retention, and smooth drivetrain performance.
Made from high-strength 7075-T651 aluminum, this chainring combines lightweight construction, excellent stiffness, and long-lasting durability. The narrow-wide tooth profile helps reduce chain drop and improves mud and dirt clearance during riding.
| Item | Details |
|---|---|
| Brand | Stone |
| Material | High-strength Aluminum 7075-T651 |
| Color | Black, anodized |
| Speed Compatibility | 9 / 10 / 11 / 12-speed chains |
| Crank Interface | For Easton EC90 SL CINCH system interface |
| Recommended Use | Gravel / Road bike |
| Not Recommended For | MTB |
| Thickness | 8mm |
| Hardness | HB150 |
| Chainline | 46mm |
| Offset | 3.5mm inner offset |
| CNC Precision | 0.03mm |
| Tooth Profile | Narrow-wide |
This chainring is designed to fit:
Important:
If your crank, spider, or power meter uses the same CINCH interface as Easton EC90 SL, this chainring will fit.
Please read the following notes carefully before ordering:
If you use a Shimano 12-speed road bike chain, you need to replace the original Shimano quick link with another compatible brand, such as KMC or YBN.
The original Shimano 12-speed quick link is too narrow and may not work properly with this chainring.
The default tooth option does not support SRAM AXS Flattop chains.
If you use a SRAM AXS Flattop chain, please select the AXS tooth option when placing your order.
This chainring is recommended for:
It is not recommended for MTB use, because MTB drivetrains usually require a different chainline.
Please confirm your crank interface, chain type, and chainline before purchase.
















