SRAM Red 10-Speed ErgoDynamic DoubleTap Shift/Brake Lever Right | Worldwide Cyclery
Found: Internal hack to convert SRAM MTB 10 speed to 11, without replacing shifter or rear derailleur - Bikerumor
SRAM X5 10-Speed Rear Trigger Shifter - SoCal Bike - Oceanside, Carlsbad and north San Diego county's favorite bike shop, Bicycle and ebike rentals, sales, and service
Technical FAQ: Make 11-speed shifters work with 10-speed - Velo