The exclusive design ensures smooth gear shifts and high durability. The extended inner plate improves chain engagement and retention. Dynamic Chain Engagement. Compatible with 12-speed drivetrains. Easy connection (SM-CN910-12). Not reusable. Mounting tool rapid and Quick-Link connection and disconnection pliers (TL-CN10). The M8100 chain offers better retention on the cogs due to an extended section of the inner link. The new chain features a quick link connection and a SIL-TEC treatment for longer lifespan in rough terrain.