Ducati Paso
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The Ducati Paso was introduced in 1986 with the slogan "Il nostro passato ha un grande futuro" (Our past has a great future). The name was in honour of racer
Renzo Pasolini Renzo Pasolini (18 July 1938 – 20 May 1973), nicknamed "Paso", was an Italian professional motorcycle road racer. He competed in the FIM Grand Prix motorcycle racing world championships from 1964 to 1972. Although he never won a world cham ...
, nicknamed "Paso", who died on 20 May 1973 in an accident at the Monza racetrack during the
Italian motorcycle Grand Prix The Italian motorcycle Grand Prix is a motorcycling event that is part of the Grand Prix motorcycle racing season. From 1949 to 1990 the event was known by the it, Gran Premio Delle Nazioni (''Nations Grand Prix''). It was one of the original ...
(''Gran Premio motociclistico d'Italia'').


Background

The Cagiva (from CAstiglioni GIovanni VArese) company, founded by the Castiglioni brothers, needed an engine – while Ducati, who had just been released from a difficult past of statutory public management (IRI), needed revenue. Over a series of Italian style meetings/lunches in 1984, they agreed a deal for Ducati to supply engines to Cagiva – and then go out of the business of producing motorcycles. However, the Castiglioni brothers of Cagiva were eventually offered a deal to buy Ducati, subject to the Ducati name living on as an actual motorcycle product. On closure of the deal, Ducati engines were instantly installed in a number of Cagiva bikes, which included the Alazzurra and the Elefant enduro bike. At the time of the takeover, due to its financial difficulties, Ducati was in a state of suspended animation in regard to engineering development. By that time, the classic bevel drive
V-twin A V-twin engine, also called a V2 engine, is a two-cylinder piston engine where the cylinders share a common crankshaft and are arranged in a V configuration. Although widely associated with motorcycles (installed either transversely or longi ...
, which was old and expensive to produce, had been replaced by the belt-drive Pantah, designed by
Fabio Taglioni Fabio Taglioni (10 September 1920 – 18 July 2001) was an Italian engineer. Born in Lugo di Romagna, he was chief designer and technical director of Ducati from 1954 until 1989. His desmodromic 90° V-twin engine design is still used in al ...
. The Pantah was already known to be a strong and capable engine, and known to deliver in the Ducati 750 F1. The Pantah engine is equipped with
desmodromic valve :''In general mechanical terms, the word ''desmodromic'' is used to refer to mechanisms that have different controls for their actuation in different directions.'' A desmodromic valve is a reciprocating engine poppet valve that is positively clo ...
s and has been constantly developed up to the present day. And around it Cagiva wanted a Ducati motorcycle unlike any other, that showed the world both Ducati's capabilities, and where it would go in the future.


The design challenge

The challenge consisted in constructing a bike with innovative technical characteristics and image to fight the intense Japanese competition. To undertake the ambitious objective, Ducati hired Massimo Tamburini, co-founder of
Bimota Bimota is an Italian manufacturer of custom and production motorcycles. It was founded in 1973 in Rimini by Valerio Bianchi, Giuseppe Morri, and Massimo Tamburini. The company name is a portmanteau derived from the first two letters of each of ...
. Tamburini would go on to design the
Ducati 916 The Ducati 916 is a fully faired sport bike made by Ducati from 1994 to 1998. Featuring a fuel injected, 4-valve, desmo, liquid-cooled, 90° V-twin engine in a trellis frame with a single-sided swingarm and USD forks, the 916 is frequently ...
and
MV Agusta F4 series The MV Agusta F4 is an inline four-cylinder sport bike made by MV Agusta from 1999 until 2018. It was the motorcycle that launched the resurrection of the brand in 1998. The F4 was created by motorcycle designer Massimo Tamburini at CRC (Cagiva ...
, included in the Guggenheim Museum's ''
The Art of the Motorcycle The Art of the Motorcycle was an exhibition that presented 114 motorcycles chosen for their historic importance or design excellenceSawetz. "The Art of the Motorcycle is curated by Thomas Krens, Director of the Solomon R. Guggenheim Foundation, ...
'' exhibition of 1988–1999, and the MV Agusta Brutale series. Tamburini decided to streamline the bike and its 750cc motor in a close-fitting integral fairing that hid all mechanical parts – one of the first motorcycles to do this, along with the Honda CBR Hurricane series, introduced the same year. He also reversed the rear cylinder head in order to meet emissions and noise restrictions abroad. The Paso 750 was equipped with latest-generation technical features: square frame tubes made in
chromoly 41xx steel is a family of SAE steel grades, as specified by the Society of Automotive Engineers (SAE). Alloying elements include chromium and molybdenum, and as a result these materials are often informally referred to as chromoly steel (common ...
steel, rear aluminium swingarm with progressive suspension, 16-inch wheels with
radial tire A radial tire (more properly, a radial-ply tire) is a particular design of vehicular tire. In this design, the cord plies are arranged at 90 degrees to the direction of travel, or radially (from the center of the tire). Radial tire construction ...
s, air-and-oil cooled engine, ⁣
electronic ignition An ignition system generates a spark or heats an electrode to a high temperature to ignite a fuel-air mixture in spark ignition internal combustion engines, oil-fired and gas-fired boilers, rocket engines, etc. The widest application for spark i ...
and a comprehensive dashboard. The finished design was christened the Paso 750 and debuted at the 1985
Milan Motorcycle Show EICMA (''Esposizione Internazionale Ciclo Motociclo e Accessori''), or the Milan Motorcycle Shows is an annual trade show in Milan, Italy featuring motorcycles A motorcycle (motorbike, bike, or trike (if three-wheeled)) is a two or three-w ...
, along with a 350 cc version that was never produced. Although initially offered only in red, by 1988 it was offered in red, blue and pearl white. Ducati and Cagiva had hopes that the new machine would redefine sports touring motorcycling and complement their sportsbike line, especially in the American market.


Sales and development

The commercial success didn't come however, and worldwide the Paso 750 only sold 4,863 units between its introduction in 1986 and 1988. Only 700 were imported into the United States in 1987. The Paso was more expensive and had lower performance (72.5 hp and 210 km/h top speed) than its competitors, and had some reliability and rideability problems with the electrical and fuel systems, due to the use of an automotive Weber carburetor, which was ill-suited to a small-capacity motorcycle engine. In 1989 the Paso 906 was introduced to replace the 750, with a six-speed
gearbox Propulsion transmission is the mode of transmitting and controlling propulsion power of a machine. The term ''transmission'' properly refers to the whole drivetrain, including clutch, gearbox, prop shaft (for rear-wheel drive vehicles), differe ...
, a 904 cc engine which provided 88 hp and a 220 km/h top speed. The bike still had the same automotive carburetor and unreliable electrical system, but its greatest development was the incorporation of
liquid cooling Liquid cooling refers to cooling by means of the convection or circulation of a liquid. Examples of liquid cooling technologies include: * Cooling by convection or circulation of coolant, including water cooling * Liquid cooling and ventilati ...
. 1,802 Paso 906's were built between 1988 and 1989. After further development, the final version of the design came in 1991 with the 907 i.e., (iniezione elettronica); now without the name "Paso". The engine remained liquid-cooled and the carburetor was replaced by the most modern Weber-Marelli IAW 043 system that integrated ignition and electronic fuel injection, which transformed the rideability of the bike. Power increased to 90 hp and top speed to 230 km/h. The wheels were changed to 17 inches, giving the bike more stability. Despite these advances, sales of this model remained sluggish, and when production ceased in 1992 only 2,303 907IE's had been built.


References


External links


Ducati Paso 750
at Ducati.com Heritage.
Ducati Paso 906
at Ducati.com Heritage.
Ducati Paso 907 i.e.
at Ducati.com Heritage. {{Ducati Paso Sport bikes Motorcycles introduced in 1986 Motorcycles introduced in 1989 Motorcycles introduced in 1991 Motorcycles designed by Massimo Tamburini