Review on Enhance Your Cycling Performance with SHIMANO Dura-Ace OT-SP41 Polymer-Coated Derailleur Cable by Ralph Gerry

Fantastic, completely eliminates any shifting issues that older Shimano SIS systems (e.g. Ultegra 6700, DA 7900 etc.) can have. Much better than the PTFE cables that came with older Shimano models. Buy a complete body and cable set here for the first time, because although the bodies are the same as the old Shimano derailleur bodies, the set includes a full set of end caps for better performance, as well as a small rail to slide into your rear derailleur . a barrel adjuster that reduces friction where the cable passes. You may need to ream or ream the old Shimano barrel adjusters a bit to get the insert snug but not over tight.