Ducati Unveils GranTurismo V4 Ahead of New Multistrada

Ducati has revealed details of its V4 Granturismo engine planned for the next generation Multistrada adventure tourer motorcycle.

While the radically reworked Desmosedici powerplant from its sports and racing bikes still packs a mighty punch, the headliner item is the reduction in size of the engine over the outgoing 1260cc V-Twin motor. The new V4 tips the scales at just 66.7kgs (147-lbs) saving 1.2kgs (2.4-lbs) over the Testastretta (narrow head) twin-cylinder.

The 1,158 cc displacement V4 is 85mm (3.3-ins) shorter, 95mm (3.7-ins) lower and only 20mm (0.7-ins) wider. This compact layout allows Ducati engineers to house the engine in the chassis more effectively and centrally to enhance center of gravity and, therefore, motorcycle handling.

In the bid to shave dimensions and save weight, the manufacturer has ditched its trademark desmodromic mechanical positive valve return mechanism in favor of the less complicated and bulky traditional valve spring mechanisms. Another advantage of this is that it brings the maintenance intervals of the V4 Granturismo to 60,000kms (37,000 miles).

Yet, the powerplant is still able to boast big numbers in terms of performance with a claimed power output of 166bhp of power at 10,500rpm and a maximum torque of 92ft-lbs at 8,750rpm. All this respecting the stringent Euro 5 homologation regulations.

The V4 Granturismo also inherits some elements derived from the experience gained by Ducati from racing, such as a counter-rotating crankshaft, which improves the handling and agility of the bike and exploits the “Twin Pulse” technology affording better grip and tractability throughout the rev range. To avoid rider discomfort at low speeds when stationary from the heat transmitted by the rear cylinders, the V4 Granturismo adopts deactivation the rear bank at idle.

Cambelts have also been replaced by part chain, part gear driven double overhead cams operating four valves per cylinder served by four oval shaped 46mm (1.8-ins) throttle bodies. Its transmission is a quick-shift six speed manual gearbox coupled with a quieter multiplate wet clutch.

— Paul Myles is a seasoned automotive journalist based in London. Follow him on Twitter @Paulmyles_

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