STONE Bike Chainring Spider Adapter 104BCD 3-bolt Direct Mount
Compatibility
- Compatible with SRAM 3-bolt direct mount cranksets.
- Compatible with SRAM X9, XX1, X0, X01 series.
- Compatible with SRAM BB30 and DUB crank systems, depending on the selected setup.
- Designed for 104BCD 1x speed chainring conversion.
- 3mm and 5mm offset models support narrow wide single chainring installation on both inner and outer sides.
Model Options
Model 1: 0mm Offset
- Fit for SRAM BB30 XX1 Eagle, X01, X9, X0 cranksets.
- 0mm offset to 104BCD, suitable for 1x speed 104BCD chainring setup.
- Supports BB30, DUB29 and 24mm spindle options.
Model 2: 3mm Offset
- Fit for SRAM X9, XX1, X0, X01 cranksets.
- 3mm offset to 104BCD, suitable for 1x speed 104BCD chainring setup.
- Supports 135mm frame opening, 142mm frame and BOOST 148mm frame.
- Supports DUB29 and 24mm spindle options.
- Supports narrow wide single chainring installation on both inner and outer sides.
- For larger tooth count chainrings, outer side installation is recommended.
Model 3: 5mm Offset
- Fit for SRAM X9, XX1, X0, X01 cranksets.
- 5mm offset to 104BCD, suitable for 1x speed 104BCD chainring setup.
- Supports 135mm frame opening, 142mm frame and BOOST 148mm frame.
- Supports DUB29 and 24mm spindle options.
- Supports narrow wide single chainring installation on both inner and outer sides.
- For larger tooth count chainrings, outer side installation is recommended.
Not Compatible With
- Not compatible with non-SRAM 3-bolt direct mount cranksets.
- Not compatible with cranksets that do not use 3-bolt direct mount interface.
- Not compatible with shifting chainrings.
- Only suitable for 1x narrow wide single chainring setup.
- Please check your crank interface, spindle type and required offset before purchase.
Product Specifications
All models are only compatible with 1x chainrings.
Package Content
Product Advantages
- Made of high strength Aluminum 7075-T651 for excellent stiffness and endurance.
- High precision CNC processing with working accuracy up to 0.03mm.
- Anodized black surface for better durability and clean appearance.
- Converts SRAM 3-bolt direct mount cranksets to 104BCD chainring standard.
- Multiple offset options available for different frame and drivetrain setups.
- 3mm and 5mm offset models allow flexible inner or outer side single chainring installation.
Installation Notice
- Please confirm your crankset model, 3-bolt direct mount interface and required offset before installation.
- 3mm and 5mm offset models can install narrow wide single chainrings on both inner and outer sides.
- Shifting chainrings are not supported.
- For larger tooth count chainrings, outer side installation is recommended for better clearance.
- Professional installation is recommended for best performance and safety.
- Please check chainline and chainring clearance after installation.
- Do not install if the adapter does not match your crank interface.



