Kawasaki Z1100GP (1981)
The Kawasaki Z1100GP, also known as the GPz 1100-B1, was a motorcycle released in 1981. The bike was powered by a 4-stroke, transverse 4-cylinder engine with a capacity of 1089 cc and a compression ratio of 8.9:1. It was equipped with Bosch electronic fuel injection, electronic CDI ignition, and had a maximum power output of 108 hp at 8000 rpm and 95.1 Nm of torque at 7000 rpm. The bike featured a 5-speed transmission and a chain final drive.
The Z1100GP had front suspension with telescopic coil/air spring forks and a front wheel travel of 138 mm, while the rear suspension was a swinging arm with 2 dampers adjustable for preload and damping and had a rear wheel travel of 99 mm. The bike had front dual 270mm discs with 1 piston calipers, and a single 270mm disc with 1 piston caliper for the rear brakes. The front and rear wheels were fitted with 3.25-18 and 4.25-18 tyres respectively.
The Z1100GP had a wheelbase of 1540 mm and a seat height of 780 mm. The dry weight of the bike was 237.3 kg, while the wet weight was 255 kg. The bike had a fuel capacity of 21.4 litres and an average fuel consumption of 38.8 mpg. It could reach a top speed of 137 mph and cover the standing quarter-mile in 11.5 seconds with a top speed of 118 mph. Overall, the Kawasaki Z1100GP was a powerful and well-equipped motorcycle that was popular among performance enthusiasts in the early 1980s.
Technical specifications:
Make Model: Kawasaki GPz 1100-B1 / Z 1100GP
Year: 1981
Engine: Four stroke, transverse four cylinder, DOHC, 2 valve per cylinder.
Capacity: 1089 cc / 66.4 cu-in
Bore x Stroke: 72.5 x 66 mm
Cooling System: Air cooled
Compression Ratio: 8.9:1
Induction: Bosch electronic fuel injection
Ignition: Electronic, CDI
Starting: Electric
Max Power: 108 hp / 81 kW @ 8000 rpm
Max Torque: 95.1 Nm / 70.2 lb-ft @ 7000 rpm
Transmission: 5 Speed
Final Drive: Chain
Frame: Steel cradle design
Front Suspension: Telescopic coil/air spring forks
Front Wheel Travel: 138 mm / 5.4 in
Rear Suspension: Swinging arm with 2 dampers adjustable for preload and damping
Rear Wheel Travel: 99 mm / 3.9 in
Front Brakes: 2x 270mm discs 1 piston calipers
Rear Brakes: Single 270mm disc 1 piston caliper
Front Tyre: 3.25-18
Rear Tyre: 4.25-18
Wheelbase: 1540 mm / 60.6 in
Seat Height: 780 mm / 30.8 in
Dry Weight: 237.3 kg / 521 lbs
Wet Weight: 255 kg / 562 lbs
Fuel Capacity: 21.4 Litres / 5.5 US gal
Consumption Average: 38.8 mpg
Standing 1/4 Mile: 11.5 sec / 118 mph
Top Speed: 137 mph / 220 km/m
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