Stone Chainring Adapter Spider for Easton EC90SL Cranks – 130BCD 5-Arm Conversion for Road and Folding Bikes
Product Overview
This adapter spider converts Easton EC90SL cranksets to the 130BCD 5-arm standard, so you can mount a wide range of road and folding bike chainrings on a single crank platform.
The adapter is designed for Easton EC90SL cranksets and other cranks that share the Easton / Race Face chainring interface. It converts the crank to a 5-arm 130BCD standard, opening up standard road and folding bike chainring options. Both 1x and 2x drivetrain setups are supported.
Compatibility
Fits
- Easton EC90SL crankset
- ELILEE XXE crankset
- GP3 power meter crank
- Other cranks using the Easton / Race Face chainring interface
Suitable For
- 130BCD 5-arm chainrings
- Road bikes
- Folding bikes
- 1x / 2x drivetrains
Specifications
| Item | Detail |
|---|---|
| Material | 7075-T651 aluminum alloy |
| Hardness | HB150 |
| Color | Black |
| Thickness | 13 mm |
| BCD | 130BCD |
| Arm type | 5-arm |
| Surface treatment | Anodized / CNC machined |
| Weight (hollow model) | 75 g |
| Weight (aero model) | 74 g |
Package Includes
- 1 × Chainring Adapter Spider
Advantages
High-Strength Material
Machined from 7075-T651 aluminum alloy for dependable stiffness and a long service life.
Precision CNC Machining
High-speed CNC processing with 0.03 mm accuracy ensures a precise, consistent fit.
Wide Application
Works with road bike and folding bike chainrings in the 130BCD 5-arm standard.
Clean Black Finish
An anodized black surface adds protection and a premium appearance.
Note
Before purchasing, please verify your crank interface and chainring BCD. This adapter is only for cranks using the Easton / Race Face chainring interface and 130BCD 5-arm chainrings.



