What is the Shimano SL-RV400 Revo twist shifter set?

The SL-RV400 is Shimano's Revo twist shifter set for flat-bar bikes in a 3x6-speed configuration, using a grip-twist mechanism to shift gears by rotating the grip forward or backward. Twist shifters suit riders who prefer a continuous grip without removing fingers from the handlebars, as well as riders with mobility challenges who find trigger shifters less accessible. The 3x6 configuration provides 18 gears for entry-level recreational bikes, commuters, and older utility bikes.

Compatible with Shimano 6-speed cassettes and 3-speed front drivetrains. Sold as a set (left and right). Cables included. Flat bar mount. An accessible, simple shifting solution for flat-bar bikes where trigger shifters aren't the preferred option.