Make your SRAM Road Drivetrain 1x12 with Ratio's 12-Speed Upgrade Kit - BIKEPACKING.com
Amazon.com : SENSAH EMPIRE Pro GS STI Road Bike Shifters 11/12 Speeds Road Bike Shifters with Shift Cable,Double Speed Lever Brake Bicycle Derailleur Groupset Road Bike Speed Lever (EMPIRE Pro 2X12(carbon fibre)) :