The SRAM Force WiFLi rear derailleur uses the Exact Actuation technology. This allows a precise shifting move with an accuracy of 3 mm in each gear, with the greatest range (up to 32T).
With the rear derailleur WiFLi, SRAM brings a derailleur with extended cage on the market, wherein the geometry is slightly adapted to make a range of 11-32 T cassettes possible. The new range of gears is larger than the standard triple systems, with this derailleur you save at least 250 grams compared with a triple.
The outside cage is made of carbon fiber with an aluminum inner link.