STONE Rotor Direct Mount to 110BCD Chainring Spider Adapter
This chainring spider adapter is designed for ROTOR Direct Mount interface cranksets.
It converts compatible ROTOR direct mount cranksets to the standard 110BCD road chainring system, allowing riders to use a wider range of road and gravel chainrings.
Compatible with both 1x and 2x drivetrain setups.
Compatibility
Fit for ROTOR Direct Mount interface cranksets:
for Rotor Kapic / Aldhu / Vegast / Hawk / Raptor / 2INpower / INpower
Compatible with 110BCD 4-arm / 5-arm chainrings
Compatible with 1x / 2x chainring setups
Compatible 4-arm chainring series include:
for Shimano Dura-Ace R9100 / R9200
for Shimano Ultegra R8000 / R8100
for Shimano 105 R7000 / R7100
for Shimano Tiagra 4700
for Shimano 5800 / 6800 / 9000 series
Precision & Tolerance Control
Mounting surface flatness: ≤ 0.02mm
Chainring runout: ≤ 0.04mm
Position tolerance: ± 0.02mm
These precision controls help improve shifting accuracy, reduce chainring deformation, and enhance drivetrain stability under load.
Specifications
Brand: STONE
Product Type: Chainring Adapter Spider / Chainring Converter
Crank Interface: for ROTOR Direct Mount Interface
Fit Crank Models: ALDHU / KAPIC / VEGAST / HAWK / RAPTOR / INpower / 2INpower
BCD: 110BCD
Chainring Compatibility: 4-arm / 5-arm road chainrings
Drivetrain Compatibility: 1x / 2x
Material: AL7075-T651 Aluminum
Process: Full CNC Machining
Finish: Hard Anodized Black
Thickness: 13mm
Weight: approx. 45g
Package Includes
Chainrings and bolts are not included.
Compatibility Note
Please check your crank interface before purchase.
Not compatible with Shimano direct mount systems.
Not compatible with SRAM direct mount systems.
Not compatible with Rotor 24mm spindle spider interface.
Not compatible with Rotor 30mm spindle spider interface.
Product Advantages
1. 110BCD Conversion
Converts ROTOR Direct Mount interface cranksets to 110BCD, allowing riders to use a wide range of aftermarket road double or single chainrings.
2. Aerospace-Grade Aluminum
Made from AL7075-T651 aluminum, offering excellent stiffness, strength, and durability.
3. High-Precision CNC Machining
Fully CNC-machined with strict tolerance control for accurate installation and stable drivetrain performance.
4. Improved Drivetrain Stability
Excellent flatness and low chainring runout help improve shifting accuracy and reduce chain drop.
5. Lightweight & Rigid Design
Optimized structure balances stiffness, durability, and weight for road and gravel riding.
