STONE 8-Bolt to 130BCD Chainring Adapter Spider
A precision CNC-machined chainring adapter spider designed to convert SRAM AXS 8-bolt road cranksets to 130BCD 5-arm chainring compatibility.
This adapter is suitable for SRAM FORCE AXS 12-speed cranksets, RED AXS 12-speed cranksets, RIVAL AXS cranksets, and QUARQ 8-bolt crank systems. It supports 130BCD 5-arm chainrings and can be used for both 1x and 2x road bike drivetrain setups.
Compatibility
- for SRAM FORCE AXS 12s crank
- for SRAM RED AXS 12s crank
- for SRAM RIVAL AXS crank
- for SRAM QUARQ 8-bolt crank
- for SRAM AXS 8-bolt road crank systems
- for 130BCD 5-arm chainrings
- for 1x and 2x road bike drivetrain setups
Not Compatible With
- not for SRAM 3-bolt direct mount cranksets.
- not for Shimano cranksets.
- not for 110BCD chainrings.
- not for 144BCD track chainrings.
- not for 4-arm chainrings.
- not for MTB wide chainline setups unless all fitment parameters are confirmed.
- not for non-8-bolt crank interfaces.
Product Specifications
Brand: STONE
Product Type: Chainring Adapter / Spider / Converter
Crank Interface: SRAM 8-Bolt Direct Mount
Chainring BCD: 130BCD
Chainring Mount: 5-Arm
Drivetrain Compatibility: 1x / 2x
Speed Compatibility: Road Bike 12 Speed
Material: 7075-T651 Aluminum Alloy
Material Hardness: HB150
Thickness: 13mm
Color: Black
Surface Treatment: Anodized
Machining: High-Precision CNC
Weight
Hollow Style: approx. 64g
Aero Style: approx. 77g
Package Options
- Adapter × 1
- 8pcs Bolts
- Adapter + 8pcs Bolts Set
Please select the correct package option before ordering.
Product Advantages
1. 7075-T651 High-Strength Aluminum
Made from high-strength 7075-T651 aluminum alloy, offering excellent stiffness, durability, and long-term structural reliability.
2. Precision CNC Machining
High-precision CNC machining with working accuracy up to 0.03mm helps ensure accurate fitment, stable chainring positioning, and reliable power transfer.
3. 8-Bolt to 130BCD Conversion
Converts SRAM AXS 8-bolt road cranksets to 130BCD 5-arm chainring compatibility, allowing riders to use a wider range of chainring options.
4. Compatible with 1x and 2x Setups
Designed for both 1x and 2x road bike drivetrain setups when used with compatible 130BCD 5-arm chainrings.
5. Black Anodized Finish
Black anodized surface improves corrosion resistance and wear resistance while providing a clean, professional appearance.
Installation Notice
- Please confirm your crank interface, chainring BCD, chainring bolt pattern, and drivetrain setup before purchase.
- This adapter is designed for SRAM AXS 8-bolt road cranksets and 130BCD 5-arm chainrings.
- It is not compatible with SRAM 3-bolt cranksets, Shimano cranksets, 110BCD chainrings, or non-8-bolt direct mount crank interfaces.
- Professional installation is recommended.
