This is the very rare medium cage version of the rear derailleur. Very rare and hard to find. Distance between pulleys is 82MM. Please study all photoes as they make up a large proportion of the listing. I normally post Monday, Wednesday and Friday and will post for needing a signed for service if you need the part quicker please message me.
This item is in the category "Sporting Goods\Cycling\Bike Components & Parts\Rear Derailleurs". The seller is "brrobe_1517" and is located in this country: GB.