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 |
