Genuine Shimano Dyna-Sys 11 Speed Jockey Wheels.
Shimano make 3 different quality levels of jockey wheels to suit their 11 speed derailleurs. They are all cross compatible, so you can "upgrade" your SLX or XT 11 speed derailleur by adding Premium Grade XTR wheels if you like!
At the top of the tree is the Premium Grade - XTR Jockey Wheels. These are the same as the orignal jockey wheels found on 9000 or 9020 series derailleurs. They feature exceptionally well sealed cartridge bearings, a mud shedding design and are super light!
Down from that is the High Grade XT level. These come standard on the XT 8000 Series Derailleurs
The Standard Grade SLX level jockey wheels round out the range. These come standard on SLX 7000 Series Derailleurs
All options include:
1 x 11 Tooth Guide Wheel
1 x 11 Tooth Pulley Wheel