Shimano Dura-Ace R9100 OT-SP41 Polymer-Coated Derailleur Cable Set in Red

From SteepandCheap.com

Though the Shimano's Dura-Ace R9100 groupset is a marked departure from its predecessor, the R9000, the accompanying Dura-Ace R9100 OT-SP41 Polymer-Coated Derailleur Cable Set is largely unchanged: The stainless cables are still polymer-coated and the housing is still lubed with silicone. No surprise here, since Shimano spent all of its R&D time on far more important things like shifting, redesigning the hood shape, and increasing crankset efficiency. And what a job the Japanese brand did. Some of us are inclined to call Dura-Ace R9100 the best mechanical shifting ever.