Shimano
Rear Derailleur Clutch for Saint, XT, SLX, Zee, Deore
Shimano OEM Shadow+ chain stabilizer unit (clutch) for Saint RD-M820, XT RD-M786, SLX RD-M675, ZEE RD-M640 and Deore RD-M615 rear derailleurs.
True Know-How
Looking for real-world advice? Dan is an expert on Shimano products.