![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 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](https://preview.redd.it/xbz2kfj9mbx01.jpg?auto=webp&s=a17a5788686bdc980b64163a7e123b3a27228459)
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
![Amazon.com: Paraout Shimano RevoShift 3 x 7 Speed Twist Shifter Combo con cable de cambio interior : Automotriz Amazon.com: Paraout Shimano RevoShift 3 x 7 Speed Twist Shifter Combo con cable de cambio interior : Automotriz](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/81ldmjdYWJL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Paraout Shimano RevoShift 3 x 7 Speed Twist Shifter Combo con cable de cambio interior : Automotriz
![8 SPEED SHIMANO REVOSHIFT SL-RS40 TWISTGRIP BIKE INDEX GEAR SHIFTER RAPID RISE : Amazon.co.uk: Sports & Outdoors 8 SPEED SHIMANO REVOSHIFT SL-RS40 TWISTGRIP BIKE INDEX GEAR SHIFTER RAPID RISE : Amazon.co.uk: Sports & Outdoors](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/71DItTo1MqL._AC_SL1500_.jpg)
8 SPEED SHIMANO REVOSHIFT SL-RS40 TWISTGRIP BIKE INDEX GEAR SHIFTER RAPID RISE : Amazon.co.uk: Sports & Outdoors
![Buy Prophete Shimano RevoShift 5354 Gear Lever Twist Grip Shifter Right Online at desertcartBarbados Buy Prophete Shimano RevoShift 5354 Gear Lever Twist Grip Shifter Right Online at desertcartBarbados](https://images-na.ssl-images-amazon.com/images/I/71ovtuCuFOL.jpg)
Buy Prophete Shimano RevoShift 5354 Gear Lever Twist Grip Shifter Right Online at desertcartBarbados
![Amazon.com: Shimano Bike Shifter SL-TX30-7R,7 Speed Mountain Bicycle Right Thumb Gear Shift Lever : Sports & Outdoors Amazon.com: Shimano Bike Shifter SL-TX30-7R,7 Speed Mountain Bicycle Right Thumb Gear Shift Lever : Sports & Outdoors](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/71OJRQyPtsL._AC_UF894,1000_QL80_.jpg)