Desmosedici Stradale V4
The Panigale V4 engine is a 1103 cc, 90 degree V4 that comes from Ducati's MotoGP bike and makes over 210 hp. Four pistons in two banks turn a single crankshaft.
A V rotated back 42 degrees
The two banks of two cylinders sit 90 degrees apart, which balances the engine's main shaking forces. The whole V is tilted back 42 degrees, which keeps the engine compact and lets the front wheel sit closer to it.
Pistons, rods and crank
Each crank pin carries one front rod and one rear rod. The bore is a large 81 mm and the stroke a short 53.5 mm, so the pistons travel only a little and the engine can rev very high.
Twin Pulse firing
The two crank pins are offset by 70 degrees, so the cylinders fire at 0, 90, 290 and 380 degrees of crank rotation. Two close pulses followed by a long gap make it sound and feel like a twin, and help the rear tyre grip.
Counter-rotating crankshaft
The crank spins the opposite way to the wheels, while the clutch and output sprocket turn the same way as the wheels. This cancels part of the wheels' gyroscopic effect, so the bike tips into corners more quickly.
Desmodromic valves
Above each bank, an intake camshaft and an exhaust camshaft turn at half crank speed. Desmodromic lobes close the valves mechanically instead of relying on springs, so the valves follow the cams exactly even at high rpm.
Breathing in and out
Air drops straight down through the throttle bodies inside the V. Exhaust leaves from the outer side of each head, forward and down for the front bank and back and down for the rear bank, and the pipes join under the engine.