SRAM Red eTap Road WiFli Kit: Medium Cage Rear Derailleur, Front Derailleur, Shift/Brake Levers
The revolutionary SRAM RED® eTap group is now available with a WiFLi™ medium cage rear derailleur capable of fitting up to a 32T large cog. As these derailleurs make their way into the hands of mechanics everywhere for the first time, we want to call attention to and clarify a few differences in setup between the WiFLi and short cage versions of the rear derailleur.
In addition to the longer cage, the mid cage WiFLi rear derailleur also has some other modified design elements, such as a redesigned b-knuckle and an offset upper pulley. These design differences require some specific changes to derailleur setup. First, the chain must be on the small chainring before setting the b-gap. Setting b-gap while in the small ring ensures that the upper pulley will not make contact with the cassette in any gear combination.