SRAM X1 11-Speed Rear Derailleur Type 2.1 - Components
Amazon.com : SRAM X01 11-Speed Trigger Shifter Includes Handlebar Clamp Black with Gray and White logo with Cable, Housing Sold Separately : Bike Shifters And Parts : Sports & Outdoors
ALL NEW SRAM X01 X-Horizon Type 2.1 Rear Derailleur Black Logo 11S Long Cage | eBay
Amazon.com : SRAM X01 Rear Derailleur - 11-Speed, Medium Cage, Black : Sports & Outdoors