STONE 110BCD 2x Chainring for Shimano R7100 R8100 R9200 R7000 R8000 R9100, for Shimano 11/12-Speed, for SRAM 11-Speed

STONE 110BCD 2x Chainring for Shimano R7100 R8100 R9200 R7000 R8000 R9100, for Shimano 11/12-Speed, for SRAM 11-Speed

The STONE BCD110R2B aero double chainring set uses a closed profile, CNC-machined 7075-T651 aluminum and dedicated shifting ramps and pins. Choose FG Aero Flat or FH Aero Grooved, with matched outer and inner rings for Shimano-style 110BCD 4-Arms road interfaces. Both versions share the same tooth profile and stated strength, while differing in exterior CNC surface design.

Key Features

• Closed aero profile with FG Flat and FH Grooved surface options.
• CNC-machined 7075-T651 aluminum with an anodized Black or Silver finish.
• Dedicated ramps and 304 stainless steel shifting pins support front shifting.
• Matched chainring sets for 2x setups with 46/32T to 58/44T options, depending on version.
• compatible with Shimano-style 110BCD 4-Arms cranks and power meter spiders.
• for Shimano, KMC and YBN 9-12-speed chain compatibility as specified; excludes for SRAM AXS Flattop 12/13-speed.

Technical Specifications

FG Aero Flat Tooth Options

FH Aero Grooved Tooth Options

FG Shifting Pin Counts

FG Aero Flat models are also identified by aero-flat references; FH Aero Grooved models use aero-groove references. The source states the same tooth profile and strength for both versions.

Compatibility

• for Shimano 105 R7100 / R7000 / FC-5800; Ultegra R8100 / R8000 / FC-6800; Dura-Ace R9200 / R9100 / FC-9000 (also written R9000 in the source); Tiagra 4700.
• The supplied road-system references also include Di2 R7170, R8170 and R9270. These identify system compatibility references, rather than additional crank mounting interfaces.
• Matching Shimano-style 110BCD 4-Arms for SIGEYI and for XCADEY spiders, for Magene P505, PES P515 and TEO P515, and other matching road power meter spiders.
• for Shimano integrated power meter cranks R9100-P, R8100-P and R9200-P (also listed as 9100P, 8100P and 9200P).
• for Shimano 11/12-speed road and for SRAM 11-speed road applications. The source also specifies for Shimano, KMC and YBN 9-12-speed chains. for SRAM AXS Flattop 12/13-speed chains are excluded.

Installation Notes

• Use the outer and inner rings as a complete matched STONE chainring set for a 2x setup. Do not mix them with chainrings from other brands.
• Confirm the for Shimano-style 4-Arms bolt pattern, crank or spider clearance and 3.5mm spider thickness requirement. A shared BCD alone does not establish fit.
• The 46/32T set has a 2mm inner offset. Fit the two supplied spacers for the stated 0mm offset configuration and 24mm/30mm axle adjustment.
• For outer rings larger than 54T or smaller than 48T, the source recommends a front derailleur extender to adjust derailleur height.
• The supplied bolt specification lists a dual T30 interface and installation torque up to 12 N·m. Follow the instructions applicable to the supplied hardware.
• Decorative bolt caps are optional and specific to STONE chainrings for 2x setups. The 46/32T set cannot use them because its 32T ring has built-in female threads.

Package Includes

• 1 STONE outer chainring and 1 matched inner chainring.
• 4 ordinary aluminum chainring bolts.
• 46/32T only: 2 offset spacers for 24mm/30mm axle adjustment.
• Decorative bolt caps are purchased separately.

Product Media and Related Links

Related STONE 110BCD double chainring product

Related STONE 110BCD double chainring product

STONE 110BCD chainring spiders and adapters

STONE decorative chainring bolt cover caps

Available Options

Each row below is one available option combination. Choose the complete combination that matches your setup.