Nabenschaltungstheorie: Unterschied zwischen den Versionen

The first model of this hub offered had a total range of 3.05. The current (2010) version has a total range of 3.24, and steps of approximately 14% except for the outermost steps of 30%. A second-lowest ratio closer to unity would require a small sun gear that would reduce reliability of the hub. Shifting is by locking none, 1, 2 or all 3 of the sun gears to the axle. When a sun gear is unlocked, the stage operates at unity ratio. When a sun gear is locked to the axle, the stage gears up, overriding the pawls used for the unity ratio. There is no "neutral" gear, as the hub defaults to the next lower gear. This hub uses a rotary shifter-cable attachment inside the right-side dropout.

The Sachs Elan, no longer available, was the first internal-gear hub which tried to rival modern derailer gearing. It has its own page on this site.