Shimano OT-SP41+OT-RS900 Polymer Shift Cable Set for R9100/R8000

The secret of the Shimano OT-SP41 Polymer Shift Cable Set is polymer coating that when viewed under a microscope looks like a series of tubes wrapped around the cable. This means less surface area rubbing the internal housing liner and it holds grease longer. The rear derailleurs RD-R9100, RD-R8000, RD-RX800 and RD-R7000 must be assembled on the bicycle with a special outer casing, OT-RS900.

The secret in polymer coating is that when viewed under a microscope it looks like a series of tubes wrapped around the cable. This means less surface area rubbing the internal housing liner and it holds grease longer. Main benefits are significantly less shifting effort and the feeling of a quicker shift action also improves braking power with remarkably less brake lever effort.

Purpose of OT-RS900
The radius (r) of the curved cable that is routed from the bicycle frame to the RD-R9100 become smaller compared to the radius generated with other rear derailleurs, as indicated in the images below. The commonly used outer casing, OT-SP41, is too stiff for such small radius that it could cause technical problems on the adjutment barrel and disturb quick and smooth engagement and disengagement of the rear wheel from the frame. By using the OT-RS900, such problems can be avoided as the stiffness is reduced on OT-RS900.

OT-RS900 should be used only on the rear derailleur side. It should not be used on the shift/brake lever side.

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Features - Shimano OT-SP41+OT-RS900 Polymer Shift Cable Set

• Polymer coating Polymer coated inner cables reduce the sliding resistance to achieve lighter and quick operation
• Low friction Cables are formed with curved surface for low friction
• Anti-rust Stainless steel cable for anti-rust protection
• Silicone grease SIS SP41 is pre-lubricated with a special silicone grease for light-action shifting
• Mud resistance Sealed end caps to minimize mud contamination

Produkteigenschaften

• Use: Road
• Group: Dura Ace R9100, Ultegra R8000/RX800, 105 R7000
• Gear wire diameter: 1.2mm
• Gear wire lengths: 1800mm / 2100mm
• Gear cable diameter: 4mm
• Gear cable lengths: 1700mm (OT-SP40) / 240mm (OT-RS900)

Color Gear Cable (choose variant)

• black
• white
• red
• grey

Material

• Gear wire: Stainless steel polymer coated

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Scope of delivery

• 1 x Gear Wire Optislick 1.2mm x 1800mm
• 1 x Gear Wire Optislick 1.2mm x 2100mm
• 1 x Gear Cable OT-SP41 1700mm
• 1 x Gear Cable OT-RS900 240mm
• 2 x Outer cap with short tongue for ST
• 3 x Outer cap with long tongue
• 1 x Sealed outer cap for Rear Derailleur
• 2 x Inner end cap
• 1 x Cover with tongue for rear derailleur
• 1 x Outer cap for FD in case of full outer cable routing

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