Tranzx Dropper Seatpost - Internal Cable - 50mm Travel - 27.2mm x 320mm Ships within Australia In stock. Available via Click and Collect or Buy Online Share Loading Facebook Like button... Tranzx Dropper Seatpost - Internal Cable - 50mm Travel - 27.2mm x 320mm Ships within Australia In stock. Available via Click and Collect or Buy Online Share Loading Facebook Like button...