Replacement for SRAM 1x Jockey Wheels
If you are on your rear mech's 2nd + season, the chances are that the bearings in your jockey wheels / derailleur pulleys are getting a bit slack.
Finding stockists of SRAM's 1x jockey wheels is trickier than it should be and if you do find some they'll be twice the price of these.
BBB BDP-06 are a straight swap into your SRAM 11s 1X mech, with good quality NSK bearings, a hard glass fibre material and narrow wide profile, these will have your gears changing nicely again.
Compatable with 1X APEX, RIVAL and FORCE