Equipment > Accessories > Cables / Housing > Cables / Housing - Shift
Description
Under magnification, Shimano's polymer coating looks like tiny tubes spiraling around the stainless steel cable strands. That structure does two things that matter for shifting feel: it reduces the surface area making contact with the housing liner, and it holds lubricant longer than bare stainless steel. The R9100 OT-SP41 Polymer Coated Shift Cableset pairs these treated inner cables with factory-greased SP41 housing to deliver the light, precise actuation that makes mechanical Dura-Ace shifting feel effortless. If you're maintaining an R9100, R8000, or R7000 drivetrain and the shifts have started feeling sticky or imprecise, fresh cables restore what you remember from the first ride.
The kit includes everything needed to replace both front and rear derailleur cables and housing on one bike. You get two polymer-coated stainless inner cables—one at 2100mm for the rear and one at 1800mm for the front—plus 1700mm of OT-SP41 housing to cut to length. The housing arrives pre-lubricated with Shimano's silicone grease throughout its entire length, so there's no need to apply cable lube during installation. Just cut clean ends with a sharp housing cutter, install the included sealed ferrules, and route normally. The ferrules themselves matter here—the sealed design keeps contaminants out of the housing at entry and exit points where water and grit typically work their way in.
The 240mm segment of OT-RS900 housing deserves attention because it's specifically designed for the rear derailleur cable loop on R9100/R8000/R7000 derailleurs. Standard SP41 housing is too stiff for the tight radius required where the cable enters the derailleur body, which can cause binding and inconsistent shifting even when the rest of your cable run is perfect. The RS900 segment flexes through that curve without kinking or adding resistance. If you've been using generic housing in that location and wondered why your rear shifting felt slightly off despite proper indexing, this is likely the culprit.... Read More
Features
- Polymer-coated stainless steel inner cables reduce friction and resist corrosion
- 1.2mm diameter cables: 1 x 2100mm, 1 x 1800mm
- 1700mm of OT-SP41 4mm shift housing, pre-lubricated with silicone grease
- 240mm OT-RS900 flexible housing segment for rear derailleur loop
- Includes sealed ferrules: 3 long tongue, 2 short tongue with nose
- Sealed outer cap for rear derailleur, nylon ferrule for front derailleur full-housing routing
- Nose cap (wear item) for rear derailleur cable adjuster
- 2 inner cable end caps
- Compatible with all Shimano/SRAM cable-actuated shift systems
- Color: Black
