Shimano Tiagra RD-4700-SS Road Bike Rear Derailleur, Short Cage 10-Speed Max.28T | eBay
Shimano Tiagra RD-4700-GS Rear Derailleur Inner Plate for Long Cage (GS Type) 689228345560 | eBay
Shimano Tiagra 4700 2x10 Speed Groupset Include 4700 Shifters Front Derailleur And Rear Derailleur Short / Medium Cage - Bicycle Crank & Chainwheel - AliExpress
Shimano Tiagra RD 4700 Rear Derailleur 10 Speed Short Cage SS Medium Cage GS | eBay