YBN 12 Speed Chain SLA1210-TIGBN's 12 speed chain is one of the lightest on the market and comes with a precious Ti nitride coating. For a low weight without affecting the strength of the bolts of the chain are hollow drilled. The long shelf life of the chain comes firstly through the Chromium Carbide Surface Hardened Treatment a process which increases the hardness of the pins by a special surface treatment many times. Furthermore, the chain works with a SLA coating (Superior