Grip shifters. Trying to replace the sticky gross covers on a trek grip shift handle bar grips. Do I have to replace the whole twisty shifter or can I purchase new rubber to cover it? They are really weird and thin. : r/bikewrench
sram - I need help getting a replacement grip shifter for a 9 speed rear derailleur - Bicycles Stack Exchange
SRAM XO Grip Shift Review - Pinkbike
SRAM Twist Shifter Service Parts (2002+) - Michael's Bicycles | Newbury Park, CA