STONE 3-Bolt to 110BCD Chainring Spider Adapter for SRAM Force/Rival Road Cranks (GXP/BB30/PF30), 1x & 2x
STONE 3-Bolt to 110BCD Chainring Adapter Spider
This adapter spider converts SRAM 3-bolt direct mount road cranksets to the standard 110BCD chainring pattern, giving you access to a far wider choice of road chainrings.
It works with selected 110BCD 4-arm and 5-arm road chainrings and supports both 1x and 2x drivetrain configurations.
Precision CNC-machined from high-strength AL7075-T651 aluminum, it delivers the stiffness, durability, and long-term reliability that high-performance road riding demands.
Compatibility Overview
Compatible cranksets:
- SRAM 3-bolt direct mount road cranksets
- SRAM Force 11 / Force 22
- SRAM Rival 11 / Rival 22
- GXP / BB30 / PF30 crank standards
Chainring compatibility:
- 110BCD road chainrings
- 4-arm models fit Shimano-style 110BCD 4-arm chainrings
- Compatible with Dura-Ace R9100, Ultegra R8000, 105 R7000, Tiagra 4700, FC-5800, FC-6800, 9000, R7100, R8100, and R9200 series chainrings
- The aero-style adapter accepts both compatible 4-arm and 5-arm 110BCD chainrings
- Suitable for 1x and 2x drivetrain setups
- Round chainrings only
Product Specifications
Brand: STONE
Product type: Chainring adapter / spider / converter
Crank interface: SRAM 3-bolt direct mount
Chainring BCD: 110BCD
Chainring type: Road chainrings
Drivetrain setup: 1x / 2x
Chainring shape: Round chainrings only
Material: AL7075-T651 aluminum alloy
Thickness: 13mm
Mounting: 4 bolts / internal thread design
Application: Road bike / performance riding
Surface treatment: Anodized finish
Machining: High-precision CNC
Model Options
Model 1 — Hollow 4-Arm
Type: 110BCD 4-bolt / 4-arm adapter
Design focus: Lightweight and everyday riding
Weight: approx. 43.7g
Key features:
- Optimized for low weight and flexibility
- Ideal for daily riding and endurance road use
- Direct, efficient power transfer
Best for:
- Daily commuting
- Endurance rides
- Lightweight builds
Model 2 — Aero 4-Arm
Type: Aero-style 110BCD 4-bolt adapter
Design focus: Strength and stiffness
Weight: approx. 60g
Key features:
- Reinforced structure for rough road conditions
- Direct power transmission
- Higher torsional stiffness
Best for:
- Aggressive riding
- Rough road conditions
- Riders who prioritize stiffness over weight
Model 3 — Hollow 5-Arm
Type: 110BCD 5-bolt / 5-arm adapter
Design focus: Extra stability under load
Weight: approx. 46.5g
Key features:
- One additional load point compared with the 4-arm design
- Improved chainring stability
- Reduced flex under hard pedaling
Best for:
- Powerful riders
- Sprinting and climbing
- Riders sensitive to drivetrain stiffness
Model 4 — Aero 4/5-Arm Dual-Compatible
Type: Full disc / multi-compatible adapter
Design focus: Maximum compatibility and stiffness
Weight: approx. 83.9g
Key features:
- Compatible with selected 110BCD 4-bolt and 5-bolt chainrings
- High machining precision
- Strongest stiffness among the standard versions
Best for:
- Riders using multiple chainring types
- Maximum drivetrain precision
- High-power output builds
Model 5 — Widened Version
Type: 110BCD 4-bolt widened version
Design focus: Improved contact and alignment
Weight: approx. 49.4g
Key features:
- Widened spider arms increase the contact area
- Better alignment with modern 12-speed chainrings
- Reduced chainline deviation
- Smoother shifting performance
- Pairs with STONE BCD110R2B series chainrings for an even better overall fit
Best for:
- 12-speed drivetrains
- Riders demanding better chainring alignment
- High-precision builds
Not Compatible With
- SRAM 8-bolt AXS cranksets
- Shimano cranksets
- 130BCD chainrings
- 144BCD track chainrings
- Oval chainrings, unless compatibility is confirmed
- Non-SRAM 3-bolt direct mount crank interfaces
Product Advantages
1. Premium AL7075-T651 aluminum
Built from AL7075-T651 aluminum alloy for outstanding stiffness, strength, and fatigue resistance during high-power road cycling.
2. High-precision CNC machining
A manufacturing tolerance within 0.03mm helps ensure accurate alignment, stable chainring positioning, and smooth power transfer.
3. Wide 110BCD compatibility
Multiple adapter models cover different 110BCD 4-arm and 5-arm road chainring standards.
4. Suitable for 1x and 2x setups
Designed for road drivetrains, supporting compatible single- and double-chainring configurations.
5. Anodized surface finish
The anodized finish improves corrosion resistance and gives the adapter a clean, durable, professional appearance.
Package Content
- 1 x Chainring Adapter Spider
Please select the correct model before ordering.
Installation Notice
- Before purchase, confirm your crank interface, chainring BCD, chainring arm type, and drivetrain setup.
- This adapter is designed for SRAM 3-bolt direct mount road cranksets.
- Choose the correct adapter model according to your chainring type and riding needs.
- For round chainrings only, unless additional compatibility is confirmed.
- Professional installation is recommended to ensure correct torque and alignment.
