Shimano Tourney / TY RD-TZ500 6-Speed Rear Derailleur With Mounting Bracket :: £27.99 :: Components :: Gears - MTB Rear Mechs :: On Yer Bike (Mansfield)
Shimano Tourney SL-TX50 SIS Thumb Shifter Plus
Amazon.com : ENBO Shimano Bike Rear Derailleur RD-TY300 6/7 Speed Rear Derailleur Road MTB Bike Mountain Bike Direct Mount : Sports & Outdoors
shimano SIS index 6 speed, Sports Equipment, Bicycles & Parts, Parts & Accessories on Carousell
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 Short Cage Rear Derailleur 6-speed | SHIMANO BIKE-EU