Coronat Prototype Unique 175 cc (1955).
Coronat was a Mallorcan brand of motorcycles, manufactured in Inca by Jaume Llobera in 1955.
The Coronats had a four-stroke engine of 199.26 cc, (long stroke with 62 mm diameter and 66 mm stroke) with secondary transmission by cardan shaft and a very original crankcase that closed the engine-change-secondary transmission set, doing in addition to swingarm for the rear suspension type mono-absorber.
It was a very advanced machine for the time and of excellent quality, but it did not continue due to disagreements between Llovera and his partner (only 5 or 6 units were manufactured).
Moto Bassella museum, Catalonia, Pyrenees, Spain