Helix Spline Bottle

Regular price $12.00

When Chris King was still in Santa Barbara, CA and Chris was developing and testing the first rear hub, he took a walk to a sidewalk chalk festival. As he tells it, he does not remember what the piece of art was but he knows he had stood and taken it in for a long time when suddenly the idea of the Helix Spline came to him. 

Rather than rely on springs to drive the parts together the Chris King Helix Spline forces the Drive and Driven Rings together when you pedal. This design means that when you pedal harder the Ringdrive will just be that much more secure. When testing the limits of Chris' design our test fixture was able to easily break competitors designs. When we attempted to break the Ringdrive and Helix Spline the metal arm of the test fixture broke in two!

Proven for more than 20 years of use and countless race victories, this bottle references the Helix Spline inside every Chris King rear hub.

  • Specialized's 22 oz. Purist bottle with Mo-Flo top
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