My NuVinci Optimized transmission hub with manual Nfinity Controller (C3™, C8™ or
C8s™) is slowly drifting to a higher ratio.
cable slack might be too high. Please adjust the cable slack to the correct
amount by rotating the barrel adjusters on the shifter. You will find a more
detailed explanation in the 2017 Nfinity manual
(EN, DE, FR, NL and ES) which you can download from our website.
NuVinci Cycling, a division of Fallbrook Technologies, is part of the innovative technology company that developed the revolutionary NuVinci transmission system. The company is headquartered in Cedar Park, Texas, has branches in China and Europe, and holds over 800 patents or patent applications worldwide.