Description
12-speed rear derailleur Shimano GRX RDRX820SET
- ・Silent and safe rear gear changes on rough terrain
- " Adjustable chain stabilizer prevents chain rattling and jumping
- "SHIMANO SHADOW RD+
- ・Smooth, reliable shifting on mixed surfaces
- "ON/OFF stabilization switch adapts to the terrain
- ・Maximum difference between chainrings: 17D
- ・Small sprocket: Max. 11T/Min. 11T min
- ・Large sprocket: Max. 36D/Min. 34D
- ・Total capacity : 42 D
