12 Speed Bicycle Chain Full Hollow Alloy Steel 12 Speed Chain for Mountain Road Bike Gold

Feature: 1. Outer Chamfer Design: The bike chain is designed with external chamfer to avoid the interference of teeth with the chain shift, and the operation is smoother. 2. Embedded High Strength Shaft Center: The bike chain has a highly rigid reinforced structure, which is compact, flexible and can withstand high trampling force. 3. Hollow Structure: The hollow structure of the inner and outer chain pieces with precise design can reduce the overall weight without changing the strength. 4. Rigid Forging Process: The high rigidity forging process can withstand the high strength instant explosive force, greatly enhancing the service life. 5. Scope of Application: The bicycle chain is applicable to all kinds of 12 speed, 2 x 12 speed and 3 x 12 speed drive system. Specification: Item Type: Bike Chain Material: Alloy Steel Weight: Approx. 300g 10.6oz. Package List: 1 x Bike Chain2 x Buckle1 x Storage Box