OT-SP41 Outer Sleeve
The outer sleeve of the OT-SP41 is pre-lubricated along its entire length with a special silicone lubricant to enable fast, precise shifting operations. The OT-SP41 reduces friction losses of the inner cable to an absolute minimum, so that the gearshift responds quickly and is easy to operate. Shifting delays and high shifting efforts are eliminated, which riders will especially appreciate in terrain that requires frequent shifting or on the long haul.
Polymer-coated inner cables
The secret is a polymer coating that looks like tubes wrapped around the cable under a microscope. This results in a smaller surface area that rubs against the inner casing cladding. Grease is also kept longer. The main advantages are significantly reduced shifting effort and the feeling of faster shifting operations.