Ariel unveiled the all new SQ 4 to the motorcycle world at the Olympia Show in 1930.
It was a brainchild of design genius Edward Turner and it was powered by an OHC engine with 2 parallel crankshafts, mounted in a crankcase transversely across the frame.
The two cranks were geared together in the center uf the unit, so in effect there were two v..
1906 FIAT BREVETTI COUPÉ DE VILLE Coachwork by Carrozzeria Italiana Cesare Sala, Milan
1906 FIAT BREVETTI COUPÉ DE VILLE Coachwork by Carrozzeria Italiana Cesare Sala, Milan Chassis No. 788 Coachwork No. 5699 Location: Siena, Tuscany, I..