Stone 110bcd Round Double Chainrings Compatible with Shimano R7000 R7100 R8100 R9100 R9200 & Sigeyi / XCADEY Power Meter Cranksets – 110BCD 4-Bolt (48/33T, 50/34T, 52/36T, 53/39T, 54/40T, 55/40T, 56/42T, 58/44T)
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High-Strength 7075-T651 Aluminum
CNC-machined from aerospace-grade aluminum for excellent stiffness, wear resistance, and long service life. -
Precision CNC Machining
Tight tolerances ensure uniform tooth profiles, improving chain engagement and shifting smoothness. -
Optimized Tooth Design
Carefully engineered ramp and pin layout increases chain pick-up efficiency and reduces missed shifts. -
Multiple Gear Combinations Available
Designed to meet different riding styles, cadence preferences, and terrain demands. -
Rich Anodized Color Options
Advanced anodizing process delivers vivid colors that change subtly under different lighting conditions. -
Dedicated Mounting Hardware
Custom-designed chainring bolts enhance rigidity and improve overall shifting reliability.





















