Bimota YB6 EXUP (1989)

The Bimota YB6 EXUP is a motorcycle built in 1989 with a production of only 114 units. It has a four-stroke, transverse four-cylinder DOHC engine with a capacity of 1002cc and is liquid-cooled. It has a high power output of 145 hp at 10500 rpm and a max torque of 94.1 Nm at 9000 rpm. The bike has a chain-driven five-speed transmission and a 20-liter fuel capacity. The frame has two beams made of aluminum with an internal ribbing design. The front suspension has 42mm Marzocchi forks with an anti-dive system and a hydraulic brake, while the rear suspension has a Marzocchi shock that’s compression and rebound damping adjustable. The bike features powerful brakes with 2x 320mm discs with 4-piston calipers at the front and a single 230mm disc with a 2-piston caliper at the rear. It has a dry weight of 185 kg and a calculated top speed of 269.0 km/h (167.1 mph), but can reach 125.4 mph in standing 1/4 mile. The YB6 EXUP is essentially a special version of the YB8, distinguished only by its color. It is noteworthy that this model is the last bike designed and built by Ing. Martini, as he resigned a week after its presentation. The bike has been praised by several motorcycle magazines for its performance and overall design.

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Technical specifications:

Make Model: Bimota YB6 EXUP

Year: 1989

Production: 114 units

Engine: Four stroke, transverse four cylinder, DOHC, 5 valves per cylinder.

Capacity: 1002 cc / 61.1 cub. in.

Bore x Stroke: 75.5 x 56 mm

Compression Ratio: 12.0:1

Cooling System: Liquid cooled

Induction: 4X 38mm Mikuni carbs

Ignition: Digital

Starting: Electric

Max Power: 145 hp @ 10500 rpm

Max Power Rear Tyre: 127.3 hp @ 10600 rpm

Max Torque: 94.1 Nm / 9.6 kg-m / 69.4 [email protected] 9000 rpm

Transmission: 5 Speed

Final Drive: Chain

Frame: Two diagonal beams in section bar made of aluminium with internal ribbing. The cylinders are supported by plates bolted to the beams and the swing arm is made of aluminium

Front Suspension: 42mm Marzocchi forks, anti dive system in the left tube of the fork leg and a hydraulic brake in the right. compression and rebound damping adjustable. adjustable by four positions

Rear Suspension: Marzocchi single shock, compression and rebound damping adjustable.

Front Brakes: 2x 320mm discs 4 piston calipers

Rear Brakes: Single 230mm disc 2 piston caliper

Front Tyre: 120/70 ZR17

Rear Tyre: 180/55 ZR17

Dry Weight / Wet-Weight: 185 kg / 219 kg

Fuel Capacity: 20 Litres / 5.3 US gal

Consumption average: 6.5 l/100km / 36.2 mpg

Braking 60 – 0 / 100 – 0: 13.2 m / 36.0 m 43.3 ft / 118.1 ft.

Standing 1/4 Mile: 10.8 sec / 201.8 km/h / 125.4 mph

Top Speed: 269.0 km/h / 167.1 mph

Road Tests: Motociclismo La.Moto Moto.Revue Moto Sprint

The YB6 EXUP is a transitional model as it is really a YB8. It is distinguished only by the colouring. This may lead to confusion so it is easier to understand it you think of it as a special version of the YB6. It is interesting to note that this was the last bike designed and built by Ing. Martini as he resigned a week after its presentation.: