Shimano Tourney SL-RV300-6R Revoshift Twist Shifter - Right 6 Speed Optical Gear DisplayShimano Tourney SL RV300 6R Revoshift Twist Shifter Right 6 Speed with Optical Gear Display. The Shimano Tourney SL RV300 6 speed right shifter has a comfortable ergonomic grip design and lighter shifting operation for riders with smaller hands. Its easy to read display and the satisfying "click" of SIS INDEX shifting helps newcomers track gear position. Ergonomic grip design with light shifting operation 25% lighter operation compared to the SL RS35