Shimano OT-SP41/OT-RS900 Polymer Shift Cable Set Dura-Ace R9100/Ultegra R8000

The Shimano shifter cable set OT-SP41/OT-RS900 for Dura-Ace – special cable housing and coated cables
The Shimano shift cable set OT-SP41/OT-RS900 Polymer is suitable for Dura-Ace R9100 and Ultegra R8000, among others, because here the rear derailleurs have to be mounted on the bike with the special OT-RS900 cable housing. The standard OT-SP41 cable housing cannot be used as it is too stiff for the small radius required. Also included in the set are shift cables with a polymer coating that looks like tubes wrapped around the cable under a microscope. This reduces the surface area that rubs against the liner and improves grease retention. This results in lower shifting forces and faster gear changes.
Specifications:Application:RoadCable Diameter:1.2 mmCable Length:1800 mm, 2100 mmCable Housing Diameter:4 mmCable Housing Length:1700 mm (OT-SP41), 240 mm (OT-RS900)Technical Information:Shifter Cable Material:stainless steelCable Coating:polymerLiner:polyethyleneCompatibility:RD-R9100RD-R8000RD-R7000RD-RX810RD-RX812RD-RX400Features:polymer-coated cables reduce friction and ensure smooth and fast operationcables have a round cross-section which reduces frictionstainless steel cable is corrosion resistant (anticorrosive (SUS))SIS-SP41 housing is pre-lubricated with special silicone grease to ensure smooth shiftingdirt-repellent: sealed housing end caps minimise the penetration of dirtset especially recommended for Dura-Ace and Ultegra due to the polymer cables, but also compatible with the other rear derailleurs listed aboveperformance indicator: ultimate (level 3 out of 3)Note from the manufacturer:The length of the OT-RS900 should be adjusted accordingly depending on the bicycle frame size. This is necessary for optimal performance. The OT-RS900 should be cut from the correct side when adjusting the length. One of the two ends is flare-processed. This flare-processed end is inserted into the barrel adjuster of the rear derailleur and should therefore remain there.
Technology:OT-RS900
For Dura-Ace RD-R9100, Ultegra RD-R8000, 105 RD-R7000 and other 11-speed road or gravel rear derailleurs, Shimano has developed the special OT-RS900 cable housing. It is less stiff than the conventional OT-SP41 housing and is therefore better suited to the tight curve where the cable is routed from the frame to the rear derailleur. Thanks to OT-RS900, problems with the barrel adjuster can be prevented and the rear wheel can be removed more easily. OT-RS900 is not intended for use on the shift/brake lever side.
Manufacturer Numbers:black:Y-0BM98010hi-tech grey:Y-0BM98040white:Y-0BM98020red:Y-0BM98030Contents:1 x Shimano OT-RS900 shifter cable housing1 x Shimano OT-SP41 shifter cable housing1 x Shimano 1800 mm shifter cable1 x Shimano 2100 mm shifter cable2 x Shimano short pointed end caps for ST-R9100/R91203 x Shimano long pointed end caps1 x end caps, sealed, for rear derailleur2 x cable ferrules1 x rear derailleur cap1 x front derailleur cable housing end cap for full length cable housing