Gem of a rear derailleur, next gen stuff. Swapped to the complete E1 system this season, 1500 miles so far and it still amazed me every ride. The shift is crisp, immediate and NOT A SINGLE mis-shift. Truly appreciate the immediate shift under load. Pair it with the amazing 13 speed cassette you won't be disappointed. Pricey! But totally worth it if I can get years out of it. Came from D1 Force and this rear derailleur is at the heart of the whole Red E1 XPLR groupset. Full mount setup is also a game changer, literally took me 5 minutes to setup from start to finish without fiddling with limits screws.
