Bottom Bracket BottomAdapt 24 Reducer for 24 Spin BBO-17 FREE shipping within Australia over AU$100.00 In stock. Available via Buy Online Only Share Loading Facebook Like button... Bottom Bracket BottomAdapt 24 Reducer for 24 Spin BBO-17 FREE shipping within Australia over AU$100.00 In stock. Available via Buy Online Only Share Loading Facebook Like button...