Reasons for Selection - Made of manganese steel, bike master links feature rust resistance, corrosion resistance, wear resistance and durability, which ensures stable power transmission, improves the chain's tensile and torsional strength, and enhances shifting smoothness.

Specifications - Total Size: 21 x 8 x 5.9mm / 0.83" x 0.3" x 0.23" ;(L*W*H); Plate Thickness: 1mm / 0.04"; Pin Diameter: 3.6mm / 0.14"; Packing List: 8 Pcs x Bicycle Chain Master Links

Suitable For - Reusable bike chain link connectors are essential for bicycle chain maintenance, repair and assembly, which are widely used for connecting or replacing chains on road bikes, mountain bikes, racing bikes and touring bikes. Suitable for routine maintenance, chain cleaning or custom chain length adjustments.

Usage Tips - Measure the chain length and remove the outer chain tabs from both ends. Place the two chain tabs onto the two ends of the chain, one from the inside and one from the outside. Pull the chain taut to the sides to complete the installation.

Kind Tips - Before riding, please make sure that the bike master chain links are completely and securely locked in place.