Dura-Ace CS-R9100 11-Speed 11t 1st position Cassette Cog

Upgrade your bike with the Shimano Dura-Ace CS-R9100 11-Speed 11t cassette cog. It's compatible with Shimano Dura-Ace CS-9000 and Ultegra CS-6800 11-Speed systems, offering smooth and reliable shifting.

Using this cassette cog is easy. Just install it on your bike's compatible 11 - speed system following the standard installation steps. When using it, make sure your chain is in good condition to ensure smooth shifting. As for maintenance, regularly clean the cassette cog with a mild degreaser and a brush. After cleaning, dry it thoroughly and apply a light coat of lubricant. This will help it last longer and keep performing well. Also, check for any signs of wear or damage regularly, and replace it if necessary.