Pulley set for Shimano GRX RD-RX 400. This is a 2×10 rear derailleur for the GRX groupset.
Pulleys have bushings instead of miniature bearings on high-end models, which is actually better in normal use.
Note that pulleys are marked, so you’ll not mistaken them when replacing. All set weighs 18gr’s.
Refer to my blog post about rear derailleurs.
