At the end of 1952, the MV Agusta 175 was released in two versions: CST and CSTL. It was their first production machine with a four-stroke engine. The unit construction single-cylinder engine was designed with an overhead camshaft for high performance. The chain-driven camshaft operated the valves via rocker arms, which were closed by hairpin valve springs. The engine was inclined forward at 10° and manufactured in alloy and a bore and stroke of 59.5 × 62 mm. This model had a frame of a double loop design using tubes for the front sections and pressed steel members at the real. The engine was used as a stressed member. Suspension was telescopic forks at the front and a swinging arm at the rear. The 175 CST was equipped with separate saddles and 17" wheels, the CSTL ("Turismo Lusso") had 19" wheels and a "long seat" (dualseat) fitted. The 175 CST weighed 103 kg and figured top speed of 100 km/h.