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The OT-RS900 shift cable housing by Shimano - For current 11-speed road rear derailleurs
The Shimano OT-RS900 shift cable housing is required for Dura-Ace RD-R9100, Ultegra RD-R8000, 105 RD-R7000 and other current 11-speed road or gravel rear derailleurs. The reason for this is the smaller radius that results when routing the cable from the frame to the rear derailleur, which cannot be created with the stiff standard OT-SP41 cable housing. The OT-RS900 is 240 mm long and has a diameter of 4 mm.
Diameter: 4 mm
Length: 240 mm
Recommended Cable Diameter: 1.2 mm
- pre-lubricated with special silicone grease to ensure smooth shifting
Modern Shimano 11-speed road rear derailleurs, such as Dura-Ace RD-R9100, Ultegra RD-R8000 and 105 RD-R7000, must be mounted on the bike with the special OT-RS900 housing. The radius of the curved cable that is routed from the frame to the rear derailleur is smaller here compared to the radii created with other rear derailleurs. The frequently used OT-SP41 housing is too stiff for such a small radius, so that technical problems can be caused in the tension adjust bolt and speedy installation and removal of the rear wheel can be hindered.
By using the OT-RS900, such problems can be prevented as the OT-RS900 has a lower stiffness. The OT-RS900 should only be used on the rear derailleur side and not on the shift/brake lever side.
Manufacturer's Note: The length of the OT-RS900 should be adjusted accordingly depending on the bicycle frame dimensions. 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 flame-treated. This flame-treated end is inserted into the adjust bolt of the derailleur/shift mechanism and should therefore remain there.
hi-tech grey: Y-0BM98041
- 1 x Shimano OT-RS900 shifter cable housing
- 1 x end caps, sealed, for rear derailleur
- 1 x Shimano long pointed end caps