104BCD Single Speed Chainring Aluminum Alloy 30T Chainring Crank Accessories for Mountain BikeBlack

Feature: 1. High strength aluminum alloy material, hardness higher than steel, not easy to deform. 2. Aluminum alloy body, the surface is anodized, the color is bright and corrosion resistant. 3. CNC precision machining, high hardness, upgraded wear resistance, fine workmanship. 4. Positive and negative tooth design to prevent chain drop and install simply, thickness is only 4mm 0.2in. 5. It is an excellent bicycle modification accessory with stable and reliable performance. Specification: Item Type: Positive and Negative Tooth Disc Product Name: Round 30T Chainring Material: Aluminum Alloy Thickness: Approx. 4mm 0.2inBCD: Approx. 104mm 4.1inWeight: Approx. 60g 2.1oz. Package List: 1 x Chainring