Two variants of this horizontally opposed twin-cylinder engine were made, one air-cooled and the other water-cooled.

-Later, another engine was built with fan-shaped cylinders, like the REP or the Farcot.

“Velox-Suère”

-The builder of the Velox engines was M. J. Suère.

-The two-cylinder, water-cooled engine had a 120 mm piston diameter and a 130 mm stroke, and a power of 30 hp was obtained at 1,600 rpm.

-Another version was air-cooled. (Photo).

-The cylinders had red copper liners.

-The valves were controlled by rocker arms and had a diameter of 60 mm and were located at the bottom of the cylinder.

-The combustion chamber was hemispherical with an average compression ratio of 4.8 kg.

-To maximize the lightness of the pistons, they were made of steel with three segments.

-A single pinion with two cams controls the four valves via rods and rocker arms.

-It has exhaust ports in the cylinder wall and at the piston's BDC.

"Velox-Suére Fan-Type"

-This engine was built in 1909, like the above mentioned engines, the fan-type four-cylinder engine produced almost 50 hp, although there is little information about its application.

-The view is almost from the top, and it is interesting to see the intake manifold branches from the carburetor.