What are SRAM MRX Comp flat bar shifters?

The SRAM MRX Comp 8-Speed Rear Shifter is a thumb-actuated trigger shifter for flat bar bikes running 8-speed drivetrains. It delivers positive, indexed shifting and is compatible with SRAM and Shimano 8-speed rear derailleurs and cassettes. A dependable option for commuters, recreational mountain bikes, and any flat bar 8-speed build.

The MRX Comp lineup covers 5 through 8-speed for flat bar drivetrains where reliable, no-fuss shifting at a practical price is the priority.