...Shimano made a couple of long cage versions that were contemporary with Crane GS, both Titlist GS and Tourney GS. The Titlist was cheaper, had less attention to finish, and can usually be found (on E-bay at least) selling for less money. Crane long cage has gotten pretty pricey for using as a parts derailleur. The cages look similar, but I've never taken one off. They all work about the same on the bicycles I've had them on.