Suzuki GSX-R400R SP (1989-90)
The Suzuki GSX-R400R SP is a sports motorcycle that was produced between 1989 and 1990. It features a four-stroke, transverse four-cylinder engine with DOHC and 4 valves per cylinder, with a capacity of 398cc. The bike also has slingshot carburetors, a wet sump lubrication system, and a liquid cooling system. Its maximum power output is 44 kW at 11000 rpm, with a maximum torque of 39.2 Nm at 9000 rpm. The transmission is a six-speed constant mesh with a chain final drive. The frame is made of aluminum angular pipe double cradle, and the bike has telescopic forks for front suspension and a full-floater swing arm for the rear suspension. The front brakes consist of two discs with four-piston calipers, while the rear has a single disc with a 2-piston caliper. The bike has 110/70-R17 53H front tire and 140/60-R18 64H rear tire with a wheelbase of 1375mm. The dry weight of the bike is 160 kg with a fuel capacity of 15 liters. Overall, the GSX-R400R SP is a lightweight and nimble sportbike with good braking, handling, and acceleration.
Technical specifications:
Make Model: Suzuki GSX-R 400R SP
Year: 1989 – 90
Engine: Four stroke, transverse four cylinder, DOHC 4 valves per cylinder. TSCC
Capacity: 398 cc / 24.3 cu-in
Bore x Stroke: 56 x 40.4 mm
Lubrication: Wet sump
Cooling System: Liquid cooled
Compression Ratio: 11.8:1
Induction: Slingshot carburetors
Ignition: CDI
Headlight: 12V 35/35w x 2
Starting: Electric
Max Power: 44 kW / 59 hp @ 11000 rpm
Max Torque: 39.2 Nm / 4.0 kgf-m / 28.9 lb-ft @ 9000 rpm
Clutch: Wet multi-plate
Transmission: 6 Speed, constant mesh
Final Drive: Chain
Primary Reduction Ratio: 2.212
Final Drive Ratio: 3.066
Gear Ratio: 1st 3.166 / 2nd 2.125 / 3rd 1.631 / 4th 1.333 / 5th .173 / 6th 1.083
Frame: Aluminum angular pipe double cradle
Front Suspension: Telescopic forks
Rear Suspension: Full floater swing arm, non-adjustable
Front Brakes: 2 x Discs, 4 piston calipers
Rear Brakes: Single disc, 2 piston caliper
Front Tyre: 110/70-R17 53H
Rear Tyre: 140/60-R18 64H
Rake: 27 degrees 25′
Trail: 96 mm / 3.7 in
Dimensions: Length 1995 mm / 78.5 in Width 695 mm / 27.4 in Height 1110 mm / 43.7 in
Wheelbase: 1375 mm / 54.1 in
Ground Clearance: 125 mm / 4.9 in
Seat Height: 735 mm / 28.9 in
Dry Weight: 160 kg / 352 lbs
Fuel Capacity: 15 Litres / 3.96 US gal / 3.3 Imp gal
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