SRAM LLC is a privately owned bicycle component manufacturer based in Chicago, Illinois, United States, founded in 1987.The company is known for producing cycling components, including some internally developed, such as Grip Shift, EAGLE (1x12), DoubleTap, dedicated 1x11 mountain and road drivetrains and SRAM Red eTap.The company grew organically and through acquisitions to become a high-end cycling component brand, selling under the brands SRAM, Avid, RockShox, Truvativ, Quarq, and Zipp.