STONE Round AERO 110 BCD Chainring: 4mm Inward Offset for 1x Conversions
Round AERO Chainring Set for 1x Conversions
Turn your Shimano road crankset into a clean, efficient 1x drivetrain with the STONE Round AERO chainring set. Its 4mm inward offset helps you achieve a more centered chainline when moving from a 2x setup to 1x, reducing chain angle and improving overall drivetrain performance.
Key Features
- Designed for 1x drivetrains only
- 4mm inward offset for improved chainline alignment
- AERO-style aluminum chainring with inner spider set
- CNC-machined from 7075 aluminum alloy
- Fits Shimano 110 BCD 4-arm road cranksets
- Works with 9 / 10 / 11 / 12-speed chain systems (not for AXS Flattop or T-type chains)
- Available in colorful anodized finishes
Specifications
| Item | Details |
|---|---|
| Brand | STONE |
| Product Type | Round AERO Chainring Set |
| Drivetrain | 1x only |
| BCD | 110 BCD |
| Mount Type | Shimano 4-arm road crank compatible |
| Offset | 4mm inward offset |
| Material | 7075 Aluminum Alloy |
| Chainring Thickness | 4mm |
| Inner Spider Thickness | 4mm |
| Total Thickness | 8mm |
| Hardness | HB150 |
| CNC Precision | 0.03mm |
| Package Includes | 1 chainring + 4 bolts |
Why a 4mm Inward Offset Matters
When converting a road crankset from 2x to 1x, a standard chainring position often leaves the chainline too far outward. The 4mm inward offset moves the chainring closer to the centerline of the bike, which helps to:
- Improve chainline alignment
- Reduce drivetrain noise
- Smooth shifting across the cassette
- Offer better compatibility for 1x road setups
Compatibility
This chainring set fits the following Shimano road cranksets:
| Shimano Series | Compatible Models |
|---|---|
| 12-Speed Road | R7100 / R8100 / R9200 |
| 11-Speed Road | R7000 / R8000 / R9100 |
| Older 11-Speed Road | FC-5800 / 6800 / 9000 |
It is also compatible with:
- 110 BCD Shimano 4-arm power meter spiders
- STONE 110 BCD 4-arm spiders
Chain Compatibility
| Chain Type | Compatibility |
|---|---|
| Shimano Road Chain | 9 / 10 / 11 / 12-speed compatible |
| SRAM Road Chain | 9 / 10 / 11-speed compatible |
| MTB Chain | 9 / 10 / 11 / 12-speed compatible |
| SRAM AXS Flattop Chain | Not supported by default |
Note: This chainring does not support the SRAM AXS Flattop chain by default. If you need a version for the SRAM AXS Flattop chain, please contact us before ordering to arrange customization.
Important Notes
- This product is designed for 1x drivetrains only.
- It does not support 2x drivetrain setups.
- It does not work with a front derailleur or front shifter.
- Please check your crank model, BCD, and chain type before purchasing.
- SRAM AXS Flattop compatibility requires customized teeth.
Package Includes
- 1 × Chainring
- Mounting bolts included
