Derailleur hanger made of aluminium alloy for KELLYS frames with 12mm diameter Thru Axle Hex socket nut included Compatibility: all rear derailleurs SRAM and rear deraillleurs SHIMANO "DIRECT ATTACHMENT" 2022: URC Disc, Hacker, Theos F, Gate, Gibon 2021: NOID (Sram), SWAG (Sram), THORX (Sram), Hacker (Sram), URC Disc, Theos F, Gate, Gibon 2019, 2020: NOID (Sram), SWAG (Sram), THORX (Sram), Hacker (Sram), URC Disc 2018: NOID (Sram), SWAG (Sram), URC Disc 2017: URC Disc *stronger version of ROAD ICAD RC Carbon Composite TAx12 2017 (suitable for MTB Gravity)