It converts White Industries R30 cranksets to compatible 110BCD road chainrings, available for both 4-arm and 5-arm chainring versions.
please confirm your crank model before ordering.
- only for White Industries R30 crankset interface
- for 110BCD 4-arm road bike chainring
- for 110BCD 5-arm road bike chainring
- supports 1X single chainring setup
- supports 2X double chainring setup
- 110BCD 4-arm version: compatible with Shimano-style 4-arm road chainrings, such as Dura-Ace R9100, Ultegra R8000, 105 R7000, Tiagra 4700, FC-5800, FC-6800, FC-9000, 105 R7100, Ultegra R8100, and Dura-Ace R9200.
- 110BCD 5-arm version: compatible with standard 110BCD 5-bolt road bike chainrings.
- supports 1X single chainring use
- supports 2X double chainring use
- Brand: STONE
- Product Type: Chainring Spider / Spider Adapter
- Crank Interface: for White Industries R30 only
- Chainring BCD: 110BCD
- Chainring Type: 110BCD 4-arm / 5-arm, depending on selected version
- Drivetrain Setup: supports 1X and 2X chainring setup
- Material: Aluminum 7075-T651
- Material Hardness: HB150
- Color: Black
- Surface Treatment: Anodized
- Manufacturing: High-speed full CNC machining
- Machining Precision: up to 0.03mm
- Thickness: 13mm
- Weight: about 49g
- Large chainring inner offset: about 3.5mm
- Small chainring inner offset: about 10.5mm
This spider adapter is made specifically for White Industries R30 crankset interface, ensuring correct fitment and stable installation.
Available for Shimano-style 110BCD 4-arm road chainrings and standard 110BCD 5-arm road chainrings. Please select the correct version before ordering.
This spider supports both 1X single chainring and 2X double chainring setups, depending on your chainring and drivetrain configuration.
Made from high-strength 7075-T651 aluminum, supplied by Aleris USA, a material supplier for aerospace applications. It offers excellent stiffness, durability, and long-term performance.
High-speed CNC machined with working accuracy up to 0.03mm, helping ensure accurate fitment, stable chainring positioning, and reliable riding performance.
- Chainring Spider Adapter × 1
- this spider adapter is only compatible with White Industries R30 crank interface.
- it is not compatible with other crank interfaces.
- please confirm your crank model before ordering.
- please choose the correct 110BCD 4-arm or 110BCD 5-arm version according to your chainring type.
- this spider supports both 1x single chainring and 2x double chainring setup.


