Suzuki GT series

1973 GT750K in Pearl Red and Tan showing the water-jacketed engine, coolant radiator and dual-sided disc front brake
1972 GT380J in Roman Red and Egret White with front drum brake
1976 GT550A in Forest Green metallic with optional factory parcel rack, showing 'Ram Air' cooling shroud on top of the cylinder head

The GT series is a series of two-stroke chain drive motorcycles manufactured and marketed by Suzuki for model years 1972–1977, with a range of engine capacities and cylinder counts. Certain markets received the GT380 until model year 1980.