Wheels Manufacturing, Dropout 21, Derailleur hanger, Giant ATX 97-98', Giant XTC 99.. FREE shipping within United States over $50.00 Buy Online Only Share Loading Facebook Like button... Wheels Manufacturing, Dropout 21, Derailleur hanger, Giant ATX 97-98', Giant XTC 99.. FREE shipping within United States over $50.00 Buy Online Only Share Loading Facebook Like button...