Amazon.com: ZUKKA Revoshift 6 Speed Shimano Right Shift Lever SL-RS35-6R Bicycle Twist Shifter Lever Mountain Bike Commuter Bike Folding Bike : Sports & Outdoors
My daughter's Trek came with a 6-speed Shimano Revoshift SIS Index. It's a new bike. She can shift to higher gears easily but does not have the grip strength to shift back
Shimano Tourney SL RS36 RS35 RS25 Revoshift Bike Twist Shifter Lever 3/6/7Speed 18s 21s RS35 as RS31For MTB Bike Bicycle Parts|shifter brake lever|twist shifterbike shifter - AliExpress
Shimano Revoshift SL-RS35,7 Speed Bike Right Shift Lever for Mountain Bicycle
SHIMANO TOURNEY Right Shift Lever 6-speed | SHIMANO BIKE-EU
REVOSHIFT SHIFTER | SHIMANO BIKE COMPONENT
Shimano RevoShift SL-RS25 Twist Grip Shifter -3/6/18 Speed Black US New | eBay
New Shimano RevoShift SL-RS25 Twist Grip Shifter 6 Speed Right Black Bicycle | eBay