>belt driven camshafts
>chain driven camshafts
>gear driven camshafts
Why not shaft driven camshafts? It has all the benefits of gear driven camshafts but with less complexity
shaft is still derived from gear driven, and it exists.
>>17856341
if only all gear driven engines were like this
pic related
>>17856321
ducati tried it in the 70's, saw 1 in person a few years ago. the guy put a glass cover on it so you could see the gears spinning.