Ask MO Anything: Why didn’t the Ducati Supermono just use Normal Counterbalancers?

Upstairs in 2016, another crank-speed counterbalancer took up residence where the exhaust cam formerly resided… according to our expert in Italy, this is a first order “primary” balance shaft that reduces the imbalance of the crankshaft and the rocking couple created by the crankshaft/main balance shaft positions.