Stone 110BCD Double Bike Chainring 46/32 48/33 50/34 52/36 53/39 54/40T for Shimano 105 R7000 Ultegra R8000 Dura-Ace R9100 CNC 7075 Aluminum 12-Speed Compatible

Stone 110bcd Chainring for Shimano 105 R7000 R8000 R9100 Double Chainring Road Bike 52 36T 53 39T 54 40T 50 34 48 33T 5800 6800

Key Features

• High-Strength AL7075-T651 Aluminum
  CNC machined from aerospace-grade aluminum with approx. HB150 hardness for long service life and resistance to deformation.

• Optimized Shifting Ramps & Pins
  Precisely engineered shift ramps and stainless steel pins improve front shifting accuracy for both upshifts and downshifts.

• CNC Precision Manufacturing
  High-precision CNC process ensures consistent tooth profiles and excellent chain engagement.

• Anodized Surface Finish
  Hard-anodized coating improves wear resistance and corrosion protection.

• Multiple Gear Ratio Options
  Available in common road double combinations to match different riding styles and cadence preferences.

Compatibility

BCD: 110mm (4-Bolt)

Compatible Cranksets:

• Shimano 105: FC-R7000

• Shimano Ultegra: FC-R8000

• Shimano Dura-Ace: FC-R9100

• Also compatible with 110BCD 4-arm crank spiders from SIGEYI / XCADEY / similar designs (without power meter interference)

Drivetrain Compatibility:

• Shimano Road 11-Speed & 12-Speed

• SRAM Road 11-Speed (mechanical systems)

⚠️ Note: Designed for road double cranksets only. Not compatible with MTB or asymmetric proprietary BCD systems.

Available Chainring Combinations

• 46T / 32T, 121g

• 48T / 33T, 143g

• 50T / 34T, 153g

• 52T / 36T, 169g

• 53T / 39T, 185g

• 54T / 40T,191g
  
  

Technical Specifications

• Material: AL7075-T651 Aluminum

• Manufacturing: Full CNC machining

• Surface Treatment: Hard anodized

• Thickness: 4mm

• Color: Black

• Weight: Varies by size (see size chart)
  
• Offset:0mm, 46-32T is 2mm inner offset

Installation Notes

• Designed for double chainring road cranksets

• Use appropriate torque settings for chainring bolts

• Professional installation is recommended for optimal shifting performance

Ideal For

• Road racing

• Training & endurance riding

• Daily commuting

• DIY performance upgrades

• Gravel-style road builds (road crank based)

Package content:
2pcs chainring and 4pcs oridnary bolts.

Notice:the decoration Bolts cap set only fit for stone 2X chainring use, not for other brand chainring.
(46T/32T can not use decoration bolts cap, 46/32T can only use the ordinary bolts as the 32T chainring has buildin female bolts)

Buy here if want 12s 

The decoration Bolts set only fits for stone 2X chainring, not work for other brand chainring,not for 1x.
Please purchase separately.
Aluminum 7075
Full CNC process
Weight: 24g

Extender 11S
If you want to use small size of chainring such as 48T 46T, then need this extender to make your front Derailleur lower to let it fit to the 48 46T chainring.
10s/11s Road Bike front derailleur (not fit for 12s, not fit for mountain bike)

Material: AL7075
Screw: 304
Extend distance: 15.5mm
Weight: 4g