In a four·cycle motor, the valves in each cylinder are Oiened and closed once in ,two revolutions of the crank shaft. This intermittent movement of the valve must be produced by a cam and a ...

Van Aert now takes a short break from cyclo-cross In the morning, Van Aert already said the day would be suitable for him if he made it to the finish. "I can't be dissatisfied.

T his year’s cyclo-cross season is one to savor. Excitement, drama, and a wide range of different winners are making for quite a spectacle. Yet, the most beautiful story of the season is that of ...