User:Atomemphis/Bimota DB4

The Bimota DB4 is a motorcycle made by the small motorcycle maker Bimota in Rimini, Italy. Made in the late-1990s, it had a 900cc Ducati L-Twin engine (a 90° V-Twin).

DB4 stands for Ducati-Bimota four i.e. the fourth Bimota made with a Ducati engine. The frame and running gear by Bimota and motor supplied from Ducati, with final assembly by Bimota.

The engine, based off the Ducati 900SS/M line, is a 4-stroke, 2-cylinder, 2-valve/cylinder, air and oil cooled, wet sump motor. The motor's internals are unchanged by Bimota, it features the same 9.2:1 compression, 904cc displacement, and identical 92x68mm bore x stroke. Fueling is supplied by two 38mm Mikuni carburettors, which were standard equipment on the Ducati 900 motor, prior to fuel injection. In stock form, the engine put out a claimed 80hp. A performance package was available from MotoCorse which included freer flowing exhaust, Keihin FCR (Flatslide) Carburettors, and tank for proper fitment with the carbs.

Per standard Ducati engine, the clutch was a hydraulic, dry multiplate mated with a 6 speed transmission.

The Bimota's chassis is made of a light alloy and is trellis in nature. Front suspension is Paoli Forks, and came with an Ohlins rear shock. The wheelbase was slightly shorter than the Ducati Supersport of the same time, at only 1370mm (The Supersport was 1395mm). Dry weight for the Bimota was also a light 165kg (with the comparable Supersport at 188kg).

Fuel Capacity was 20 litres, and 17" wheels were standard equipment. Braking was accomplished up front with Brembo Goldline Calipers (4-piston, 65mm mount spacing) on 320mm floating Brembo rotors. The rear brake was equipped with 2-piston caliper and 230mm rotor.

Full-fairing and half-fairing versions were available.

The DB4c version was equipped with the 94mm high compression pistons, bring displacement to 944cc. The DB4c included other 'Corse' edition features as well.

DB4