Shimano XTR Rear Derailleur RD-M9000-GS Inner Plate

Shimano XTR M971 long-cage rear derailleur; 200g of 2006!

Shimano XTR Rear Derailleur RD-M9000-SGS OUTER Plate for Super Long Cage

Shimano Ultegra RD-R8150 Di2 Rear Derailleur Inner Plate

Shimano Inner/Outer Plate Deore XT RD-M8000 Rear Derailleur SGS (Long Cage)

Shimano Inner/Outer Plate for RD-M8000 Rear Derailleur GS (Medium) or SGS (Long)

Shimano XTR RD-M9100 SGS 12-Speed Rear Derailleur Inner Plate for Precision

Shimano DURA ACE 9250 Di2 12 Speed Rear Derailleur Pulley Cage and Pulleys.