Description: This bike single speed cassette cog made of steel material with anti-rust plating- high strength, strong and solid for long time using. Specification: Material: Stainless Steel; Aluminum Alloy Size Chart: Cassette Cog Diameter: 74.5mm/2.93inch Package Includes: 1 Piece Cassette Cog Set SKU: AGS0073491998179932
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