Chainring Bolt Nut for 5-Speed Road Bike Black

Features: 1. High-quality materials: The bicycle crank mechanism lock bolt is made of wear-resistant 10B21 bolt steel, which ensures the hardness and durability of the product and can withstand the wear and tear of various cycling environments. 2. Precise fit: Precisely designed, it is very suitable for the installation and stability of bicycle chains and chains, which helps to improve riding comfort and efficiency. 3. Easy installation: Each package includes a complete set of bicycle toothpicks and roller lock bolts for easy and quick installation without additional tools. 4. Wide range of applications: Whether it is mountain bikes, road bikes, folding bikes, BMX bikes or even electric bikes, this chainring bolt is an ideal choice. 5. Value for money: Bringing you the best shopping experience. Whether you are a cycling enthusiast or a bicycle repairman, this toothpick screw will be an ideal choice. Specification: Material: 10B21 screw steel Size: 0.39 * 5.12 inch / 1.0 * 13.0 cm Color: gold, silver, copper Purpose: To fix large and small discs on the crank mechanism, the B width is usually used to lock the two-piece chainring of the mountain bike, the C type is usually used to lock the single chainring. If the cover is removed, it can directly lock the smallest chainring of the mountain bike. Package includes: 5 pcs Notes: Please allow slight deviations due to manual measurement. The colors may be slightly different on different monitors.