ShimanoXTR/Dura-Ace CN-M9100 12-Speed Chain(Return to Product Page)

When Shimano started rolling out 12-speeds across their lines, it took quite a while before availability reached us end consumers for ongoing replacement. I've been using 6701/Ultegra chains as fantastic value/performance for more than a decade, was fine using an Ultegra chain for the first replacement on my new 12-speed, but very prefer the slightly lighter and smoother shifting of the Dura-Ace for that bike (equipped with Dura-Ace drive train).

Quiet, smooth, efficient, easy to install, remove and clean. What more could you ask for?

I just replaced my Ultegra 8100 chain with 5,700 punishing miles I put on it since early February of 2023. I run a 12 speed Di2 and take incredible care of my chain and every component of the groupset. I counted and matched the number of links that were already on my BMC SLR01, which was 110, and cut the chain for the Quick-Links. I was amazed by how much stretch I had put on my previous chain when I compared the old and new side-by-side - only a few milimeters, but the new chain results in a tighter drive train and feels amazing with its crisp and silent shifting. Shimano chains are fantastic products, but like everything mechanical in this world, it can wear or stretch. I am so glad I went with this 9100 as a nice upgrade for my bike.

Not the most durable but certainly light.

Silent shifts...

shifts quiet and smooth. What more is there to be said ...