STONE Chainring Spider Adapter for White Industries R30 Crank – 110BCD, Shimano 4-Arm or Standard 5-Arm Chainrings, 1X & 2X
This STONE chainring spider adapter lets you mount modern 110BCD road chainrings on a White Industries R30 crankset. It is offered in two versions—one for Shimano-style 4-arm chainrings and one for standard 5-arm chainrings—so you can match it to the chainrings you already run or plan to use.
The STONE spider adapter is designed specifically for the White Industries R30 crankset interface. It converts the R30 crank to accept standard 110BCD road chainrings, and it is available in versions for both 4-arm and 5-arm chainring bolt patterns.
This adapter fits only the White Industries R30 crank interface. It does not work with other crank interfaces, so please confirm your crank model before ordering.
Compatibility
Choose the spider version that matches your chainring type:
- Exclusively for the White Industries R30 crankset interface
- 4-arm version: for 110BCD 4-arm road bike chainrings
- 5-arm version: for 110BCD 5-arm road bike chainrings
- Supports 1X single chainring setups
- Supports 2X double chainring setups
Chainring Compatibility
The adapter is available in two versions: one for Shimano-style 110BCD 4-arm road chainrings, and one for standard 110BCD 5-arm chainrings.
- 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
Product Specifications
- Brand: STONE
- Product type: chainring spider / spider adapter
- Crank interface: White Industries R30 only
- Chainring BCD: 110BCD
- Chainring type: 110BCD 4-arm or 5-arm, depending on the selected version
- Drivetrain setup: supports 1X and 2X chainring setups
- Material: 7075-T651 aluminum
- 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
Offset Information
After installing the chainrings, the offset reference is as follows:
- Large chainring inner offset: about 3.5mm
- Small chainring inner offset: about 10.5mm
Product Advantages
1. Designed for the White Industries R30 Crank
This spider adapter is made specifically for the White Industries R30 crankset interface, ensuring correct fitment and stable installation.
2. Supports 110BCD 4-Arm and 5-Arm Chainrings
Available for Shimano-style 110BCD 4-arm road chainrings and standard 110BCD 5-arm road chainrings. Please select the correct version before ordering.
3. Compatible with 1X and 2X Setups
The spider supports both 1X single chainring and 2X double chainring setups, depending on your chainring and drivetrain configuration.
4. High-Strength 7075-T651 Aluminum
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.
5. High-Precision CNC Machining
High-speed CNC machined with working accuracy up to 0.03mm, helping ensure accurate fitment, stable chainring positioning, and reliable riding performance.
Package Content
- Chainring spider adapter × 1
Important Notice
- This spider adapter is only compatible with the 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 setups.
