It's a long shot but I'm looking to buy a 43 tooth, 520 sprocket to suit a Marchesini rim, if anyone has such a weird beastie available?
Apparently many Marchesini, Marvic, BST sprockets are the same: 5 stud/bolt pattern at 100mm PCD, 76mm centre hole.
I know I can get 'em off Ebay etc but I thought I'd try locally first.
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