Sram GX 10-Speed Rear Derailleur Medium Black Compatio_Enriched The Shimano Ultegra BR-R8010 is

The Shimano Ultegra BR-R8010 is a direct-mount brake caliper

EZ Fire Plus design features 2 shift levers

Zero stack uppers press into head tube with very little stack height

Vento are race bred tapes for ultimate control and reduced weight

Stainless Steel Skewers

Sram GX 10-Speed Rear Derailleur Medium Black Compatio_Enriched The Shimano Ultegra BR-R8010 isLeveraging the legendary history of SRAM shifting, the GX 2x10 rear derailleur provides incredible shifting speed and precision. EXACT ACTUATION technology eliminates slop and shifting variation. ROLLER BEARING CLUTCH technology delivers maximum drivetrain stability even through the most punishing terrain. And with CAGE LOCK technology, wheel removal and installation are easier than ever. EXACT ACTUATION for precise and dependable 10 speed performance