SRAM was founded on a single product in 1987 and introduced the Grip Shift (or twist shift) shifter to the road bike market in 1988. In 1991 that technology was adapted for mountain bikes, and SRAM quickly grew. 

SRAM LLC is a privately owned bicycle component manufacturer based in Chicago, Illinois, United States, founded in 1987. SRAM is an acronym comprising the names of its founders, Scott, Ray, and Sam