Aluminum alloy chainring with precision CNC machining and dual finishes (anodized and electroplated). The smooth surface and bright color provide a durable, corrosion-resistant appearance that stands up to regular riding. Specifications - 52T - BCD: 130 mm - Square hole design - Free of obstructions or noise during operation Key benefits - Strong, lightweight aluminum ensures reliable performance and longevity. - CNC precision ensures accurate tooth spacing for smooth engagement. - Anodized and electroplated finishes resist wear and corrosion while maintaining a bright appearance. - Designed for clean, quiet operation with minimal friction and no interference. Compatibility and performance - Fits cranks with a 52T chainring and 130 mm bolt circle diameter (BCD) and square-hole interface. - Provides stable shifting performance and consistent chain engagement. Use scenarios - Road bike upgrade: replace a worn chainring to restore smooth pedaling, improve cadence, and enhance acceleration. - City commute: durable chainring choice for daily riding with reliable performance in varying conditions. - Bike shop or maintenance: a readily available spare part for repair and replacement on compatible cranksets. This description preserves the original specifications and function while presenting a clear, customer-focused overview of material, finish, size, compatibility, and real-world use.