Shimano web site 2020 - exploded views from 2019 Shimano Tourney (TY500)
Shimano Tourney Ty500 3x6s 3x7s Front Derailleur Fit With Dual Sis Index Shifting Rd Ty500 Sgs Mtb Mountain Bike Bicycle Part - Bicycle Derailleur - AliExpress
Shimano Tourney RD-TY500-SGS 6 7 Speed Rear Derailleur TY500 Direct Mo – Ultimate Sports