Thanks both. So it must be a RD-RX812? As it is 11sp and 11-42t slx cassette. Anyone who has experiences riding this and able to compare shifting to a R8000 rear mech on 11-32 cassette?
i have installed a RD-RX810 (the one for 2x group on my CX) with 6800 shifters and a 11-32 cassette and the shifting is great. very silent too ( the large jockey wheels seem to work wonders )
Thanks both. So it must be a RD-RX812? As it is 11sp and 11-42t slx cassette. Anyone who has experiences riding this and able to compare shifting to a R8000 rear mech on 11-32 cassette?