05-24-2020, 03:19 AM
i can get the exact same bike with either of these two rear derailleurs, the first one is rd-m591, deore series, which is supposed to be better than the second option, the rd-m2000 which belongs to altus series. However something tells me that this particular deore is outdated and worse than the altus one... i now its just a cheap little thingy but i have gotten paranoid and i keep googling like a maniac about which one to get