☆ ALUMINUM ALLOY MATERIAL - made of high-strength aluminum alloy, the hardness is higher than steel, CNC numerical control turning processing fine workmanship, using laser laser combined with a variety of processes to create bicycle sprocket bolts
☆ ANODIZED COLORING - The anode is colored to prevent oxidation, and the surface is anodized to make the color bright and corrosion resistant. At the same time, the overall smoothness of the bolt is strengthened to make the color more dazzling and beautiful
☆ PRODUCT SIZE - 6.4mm bolts are double Chainring Bolts, 4.9mm bolts are Single Chainring Bolts, please carefully distinguish the size you need before ordering, so that you can get the correct product