The latest to get this treatment is the Diavel, and heres whatever you require to know about the recently presented Diavel V4.Ducati Diavel V4: Motor madnessObviously, the huge news is that Ducati has wedged the monstrous V4 Granturismo engine into the Diavel, implying that power output is up from 162hp on the old Diavel 1260 to 168hp on this V4. Torque is marginally down from 129Nm to 126Nm, and fuel efficiency has actually reduced by about 15%, but Ducati has actually countered the latter by giving the Diavel a bigger fuel tank (now 20-litres), so general variety has actually gone up.Another huge advantage of the new motor is that valve clearance checks are now far less frequent– you just need one every 60,000 km, thanks to this being the very first modern-day Ducati engine to use standard valve springs instead of the Desmodromic system.Ducati Diavel V4: Chassis changesWhere the previous Diavel 1260 utilized a conventional trellis frame, the brand-new Diavel V4 is held together by an aluminium monocoque building and construction. If there is an S version in the future, it will have little space for improvement in the braking department, with the stock Diavel V4 already featuring Brembo Stylema calipers biting down on twin 330mm discs up front.Ducati Diavel V4: Saucy stylingThe basic design language remains the same, so the Diavel is still a muscular power cruiser, with bits like the 240-section rear tire and shaped fuel tank giving the bike a bold appearance.