STONEDW 8-Bolt Direct Mount Narrow-Wide Chainring for SRAM DUB WIDE Road & Gravel — 36T–46T, 6.5mm Offset
STONEDW Direct Mount Single Chainring — AL7075 CNC, Built for SRAM DUB WIDE Road & Gravel
Precise Power Transfer Starts with the Right Chainring
Machined from imported AL7075-T651 aluminum with a hardness of 150HB, this narrow-wide single chainring features a 6.5mm offset purpose-built for SRAM DUB WIDE road and gravel cranksets. The result is a stiff, lightweight ring that delivers clean, precise power transfer mile after mile.
Important: Check Your Crank Spindle Before Ordering
The 6.5mm offset is designed exclusively for SRAM DUB WIDE spindle cranksets (the Road/Gravel Wide version) — not the standard DUB spindle.
DUB WIDE cranksets are typically paired with road and gravel frames that offer wider tire clearance. Installing this ring on a standard DUB crank may result in an incorrect chainline or Q-factor, so please confirm you have the DUB WIDE version before purchasing.
Key Features
| Feature | Description |
|---|---|
| Premium Material | Imported AL7075-T651 aluminum, heat-treated and pre-stretched for superior rigidity and minimal deformation |
| Surface Treatment | CNC machined with an anodized finish — corrosion resistant, wear resistant, insulated, and fade-proof |
| High Precision | Interface parallelism guaranteed within 0.02mm — the same level of accuracy as OEM SRAM chainrings |
| DUB WIDE Offset Design | 6.5mm inward offset, matched to the SRAM DUB WIDE specification |
| Style Options | Cutout (Hollow) — lighter, quieter, less crosswind drag; Closed (Aero) — stiffer with lower flex, ideal for sprint power |
| Color Options | Anodized Black or Silver |
Important: Two Tooth Profile Types — Choose the Correct One
This chainring is produced in two different tooth profile designs. Select the version that matches your chain:
| Tooth Profile | Chain Compatibility | Marking |
|---|---|---|
| Standard Profile | Non-flat-top chains — compatible with Shimano, KMC, and most 9/10/11/12-speed chains | “9/10/11/12 SP” |
| AXS / Flat-Top Profile | Flat-top chains only — SRAM AXS road chain or SRAM T-Type chain | “FOR AXS 12SP” or “FOR T-TYPE” |
Note: When pairing the Standard Profile chainring with a Shimano 12-speed chain, replace the OEM quick-link with a KMC or YBN 12-speed quick-link for full compatibility. 9/10/11-speed chains work directly regardless of brand.
Specifications
| Item | Detail |
|---|---|
| Brand | STONEDW |
| Interface | 8-Bolt Direct Mount |
| Tooth Count Range | 36T / 38T / 40T / 42T / 44T / 46T |
| Thickness | 10mm |
| Offset | 6.5mm inward (DUB WIDE spec) |
| Material | AL7075-T651 |
| Finish | CNC + Anodized |
| Colors | Black / Silver |
Crank Compatibility
Fits SRAM 8-bolt Road/Gravel DUB WIDE cranksets, including:
- SRAM Rival AXS (DUB WIDE, 8-bolt)
- SRAM Force AXS (DUB WIDE, 8-bolt)
- SRAM RED AXS (DUB WIDE, 8-bolt)
- STONEDW FC-RD004 (Wide spindle version)
Please verify your crank spindle is the WIDE version before ordering. Standard DUB spindle cranks may require a chainring with a different offset.
Installation
- Torque spec: 4Nm
- Tool required: T15 Torx wrench
- Use OEM bolts or self-prepared bolts matching the 8-bolt interface
Recommended Tooth Count by Riding Style
Road Bike
| Style | Tooth Count |
|---|---|
| Climbing | 36T / 38T / 40T |
| All-around | 42T / 44T / 46T |
Gravel Bike
| Style | Tooth Count |
|---|---|
| Pure off-road | 36T / 38T |
| All-around | 40T / 42T / 44T |
| Speed-focused | 44T / 46T |
Recommendations are for reference only — choose based on your actual riding conditions.
Notes Before Purchase
- This chainring can be installed in any rotational direction (round profile, no timing marks needed)
- Designed for SRAM DUB WIDE Road/Gravel cranksets only — confirm your crank spindle type before ordering
- Suitable for road and gravel bike conversions — not compatible with mountain bike (MTB) cranksets due to different offset requirements
- Confirm your chain type before ordering — Standard Profile for Shimano/KMC chains, AXS/Flat-Top Profile for SRAM AXS/T-Type chains
- Weight may vary slightly due to ongoing product optimization — actual weight is based on the latest batch
