STONE Spider Adapter for Rotor 3D & 3D+ Cranksets: 24mm Spindle to 110BCD Chainring Conversion
The STONE spider adapter lets you run standard 110BCD road chainrings on Rotor 24mm spindle cranksets — a simple, cost-effective way to update your gearing for road or gravel riding.
This chainring spider adapter is designed for Rotor 24mm spindle cranksets, including the Rotor 3D and 3D+ models. It converts your crankset to accept 110BCD road chainrings, making it a practical upgrade for both road and gravel bikes.
The adapter supports both 1x and 2x drivetrain setups, giving you flexible gearing options without replacing your entire crankset.
Compatibility
Cranksets
- Rotor 24mm spindle cranksets
- Rotor 3D crankset
- Rotor 3D+ crankset
Chainrings
- 110BCD 4-arm / 5-arm chainrings
- Suitable for 1x and 2x drivetrain setups
Compatible Chainring Series
- Shimano 105 R7000 / 5800 / R7100
- Shimano Ultegra R8000 / 6800 / R8100
- Shimano Dura-Ace R9100 / 9000 / R9200
- Shimano Tiagra 4700
Specifications
| Brand | STONE |
|---|---|
| Product Type | Chainring Spider Adapter |
| Crank Compatibility | Rotor 24mm Spindle Crankset |
| Fit Crank Models | Rotor 3D / 3D+ |
| BCD | 110BCD |
| Chainring Type | 4-arm / 5-arm road chainring |
| Drivetrain Compatibility | 1x / 2x |
| Material | 7075-T651 Aluminum Alloy |
| Material Source | Aleris USA |
| Hardness | HB150 |
| Color | Black |
| Surface Treatment | Anodized |
| Thickness | 13mm |
| Chainline | Same as original Rotor size |
| Weight | approx. 40g |
Advantages
1. High-Strength Aluminum
Made from 7075-T651 aerospace aluminum alloy, offering excellent stiffness, durability, and a long service life.
2. Precision CNC Machining
High-precision CNC machining with working accuracy up to 0.03mm helps ensure accurate installation and stable riding performance.
3. 110BCD Conversion
Converts Rotor 24mm spindle cranksets to 110BCD, allowing riders to choose from a wider range of road and gravel chainrings.
4. Wide Chainring Compatibility
Compatible with both 110BCD 4-arm and 5-arm chainrings.
5. Stable Chainline
Designed to keep the same chainline as the original Rotor size for smooth, consistent drivetrain performance.
Installation Notice
Before purchasing, please confirm your crank model, spindle type, chainring BCD, and chainring arm type.
This adapter is designed specifically for Rotor 24mm spindle cranksets, including the Rotor 3D and 3D+ models. Professional installation is recommended.
