The Ducati 851 SP: a bike that defied convention and expectations in its era. This potent 90LT twin cylinder engine, featuring desmodromic 4 valves per cylinder and a DOHC configuration, belies its relatively modest capacity with a character that’s at once raw and refined.
Its smooth, powerful delivery is the perfect accompaniment to a riding experience that demands finesse and control. The Ducati 851 SP rewards those who treat it with respect, coaxing out hidden reserves of performance from its robust engine.
As you carve through corners and accelerate down straights, the 851 SP’s weight distribution and precision handling become increasingly apparent, making it an absolute joy to ride. With its razor-sharp reflexes and intuitive ergonomics, this bike is a masterclass in motorcycling dynamics. It’s clear that the Ducati 851 SP is more than just a machine – it’s an extension of the rider, a true partner in the pursuit of speed and adrenaline.
Key Specifications
Engine Type
Four stroke, 90Ltwin cylinder, DOHC, desmodromic 4 valves per cylinder, belt driven
Engine Capacity
851 cc / 51.9 cu in
Max Power
89.7 kw / 122 hp
Fuel Tank Capacity
5.3 US gallons / 20.0 L
Seat Height
29.9 inches / 760 mm
*n/a – information not provided by manufacturer
All Specifications
Make & Model
Model
Ducati 851 SP
Year
1989
Engine
Engine Type
Four stroke, 90Ltwin cylinder, DOHC, desmodromic 4 valves per cylinder, belt driven
Displacement
851 cc / 51.9 cu in
Bore x Stroke
92 x 64 mm
Compression Ratio
11.5:1
Max Horsepower
89.7 kw / 122 hp
Engine Management System
Weber I.A.W. CPU P7 electronic fuel injection. 2 x 50mm throttle bodies
*We strive to provide the most comprehensive and accurate specifications possible. However, certain details may not be available if the manufacturer did not disclose them or if the information is no longer publicly accessible. If you find any discrepancy with any data on this site, please feel free to let us know at contact@throttlecraze.com