Shimano Dura-Ace SP41 Polymer-Coated Derailleur Cable Set, Red

Shimano Dura-Ace OT-SP41 Housing & Polymer Cable Derailleur Sets
Polymer-coated, stainless steel inner cable reduces the sliding resistance to achieve lighter and quicker operation and is rust resistant
OT-SP41 Housing is pre-lubricated with silicone grease
Sealed end caps to minimize dirt contamination
Low friction polymer material on the cable may cause slippage at the cable fixing bolt after initial pre-stretch for the cable is performed