Enhancements to the liquid-cooled, 849cc 90-degree V-Twin include new Marelli throttle bodies with larger elliptical bores feeding revised cylinder heads with straighter intake ports and reshaped combustion chambers. This, along with a new piston-crown profile, has delivered a substantial increase in compression ratio, from 12.0:1 to 13.2:1. Intake-valve lift is up from 11.5 to 13.0mm with 4 degrees more duration. The 2-into-1-into-2 exhaust now uses twin lambda O2 sensors said to help achieve mandated emissions levels. Ducati claims a 6-hp increase, bringing output to 140 measured at the crank.