SRAM Red 10-Speed Rear Derailleur Barrel Adjuster Kit, Black

SRAM Apex Rear Derailleur Barrel Adjuster Kit - High-Performance Gear Tuning

SRAM APEX XPLR AXS Rear Derailleur Pulley Kit

SRAM Red 13/ Red 22/ Force 22 Aero Glide Rear Derailleur Barrel Adjuster Kit

SRAM Red (08-11)/Force/Rival/Apex Rear Derailleur Barrel Adjuster Kit, Black

Sram Apex XPLR rear derailleur 12 speed mechanical

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SRAM RDRS1003 Barrel Adjuster Kit for Rear Derailleur Apex / Rival / Force