3 :long sweep: downshifts rear mech. 4 :long sweep: upshifts front mech. 5: short sweep: downshifts front mech. 6autoretenion: prevents accidental shifting while braking.Is provided once the item is dispatched. Items must be in original box and kept in good condition. My goal is to make sure you are a happy customer and pleasant shopping with us. The item "Front Rear Derailleur 2x11-speed Shifters High quality Fits sensah road bicycle" is in sale since Monday, March 16, 2020. This item is in the category "Sporting Goods\Cycling\Bicycle Components & Parts\Build Kits & Gruppos". The seller is "seniors_203" and is located in Guang Zhou, Guang Dong. This item can be shipped worldwide.