2012 Ducati Streetfighter 848 Testastretta 11°
A masterpiece of Desmodromic engine design
The 848 Testastretta 11° can deliver 132 hp at 10,000 rpm and a torque of 9.5 kgm at 9,500 rpm.
A
direct offshoot of the Testastretta Evoluzione used on the Superbike
848EVO, it makes the most of the Testastretta 11° technology that has
already proved so successful on the Multistrada and Diavel , giving
awesome torque even at low revs. With respect to the Testastretta
Evoluzione, the overlap angle has been reduced from 37° to 11° to ensure
unbeatably fluid power delivery, a much wider power band and reduced
consumption and emissions.
The Testastretta 11° maintenance schedule requires valve regulation just once every 24,000 km.
The Crankshaft
The Streetfighter 848 lightweight crankshaft assembly operates a ‘over-square' bore and stroke with 94mm pistons and 61.2mm strokes.
Wet Clutch
The Testastretta 11° engine transmits drive to a sophisticated wet clutch that is a full kilo lighter than the corresponding dry version; it is also characterised by enhanced durability, improved 'feel' and lower noise levels, making riding a real pleasure whatever the circumstances.
Vacural® Crankcases
The Testastretta 11° engine on the Streetfighter 848 features a crankcase produced by pressure die casting under vacuum using Vacural® technology: this gives significant weight savings and ensures constant wall thickness and greater strength.
Magnesium Alloy Engine Covers
Attention to weight reduction is further underlined with both cam covers and clutch outer cover cast in magnesium alloy.
Exhaust System
The massive 2-1-2 exhaust system is made from weight-saving 1mm thick
steel and flows from 58mm to 63.5mm diameter pipes. The system uses two
lambda probes to ensure precise fuel mapping for optimum performance and
an electronic valve in the mid-section to achieve a wide spread of
power.
The cannon-style, vertically stacked, brushed steel mufflers deliver the
famous Ducati L-Twin sound synonymous with raw, Desmo power.
