Feature:1. Aluminum Alloy Material: Using high strength aluminum alloy material to cut and shape, full CNC processing technology, multi color anode, sturdy and durable.2. Positive and Negative Teeth: The design of positive and negative teeth, the gears are neat and symmetrical, and highly fit the chain, the bite is firm and stable.3. Reduce Chain Falling: The unique tooth shape design greatly increases the contact area with the chain, which can enhance the grip and reduce the chain falling.4. Humanized Design: The ergonomic shape of the bicycle chain link uses the effective effect of pedaling to create more pedaling traction.5. Scope of Application: 56T specifications, 130mm BCD, chain is suitable for road bikes, BMXs, folding bikes, can effectively improve the performance of bike.Specification:Item Type:Bicycle ChainringProduct Material: Aluminum AlloyProcess: Multicolor AnodeSpecification: 56TBCD: Approx. 130mm / 5.1inWeight: Approx. 387g / 13.7ozApplication: Road Bike, BMX, Folding BikePackage List:1 xBicycle ChainringNote:Please confirm before buying, the crank BCD is 130mm.