The Honda CBR250RR motorcycle was produced in 1989-1990. It has a four stroke, transverse four-cylinder engine with DOHC and 3 valves per cylinder. The engine capacity is 447cc/27.2 cu-in with a bore x stroke of 75 x 50.6 mm and a compression ratio of 9.2:1. The bike is liquid cooled and has a Keihin 31.3 mm carburetor. Its ignition is CDI and it has an electric start. It produces a maximum power of 46.5 hp/33.6 KW at 8500 rpm and maximum torque of 4.2 Nm / 4.1 kgf-m / 29.5 ft.lbs at 7000 rpm. The motorcycle has a six-speed transmission and a final drive chain. The frame is a dual side box beam in steel tubes. Its suspension consists of a 37 mm telescopic fork front suspension with 140 mm / 5.5 in of travel, and a monoshock box section swingarm rear suspension with 110 mm / 4.3 in of travel. The front brakes have two 275mm discs and two-piston calipers, while the rear brakes have a single 220mm disc and one-piston caliper. The front and rear tires are 110/80-R17 and 130/70-R17 respectively. The motorcycle has a length of 2010 mm / 79.1 in, width of 720 mm / 28.3 in, and height of 1120 mm / 44.0 in. The wheelbase is 1370 mm / 53.9 in with a ground clearance of 140 mm / 5.5 in and a seat height of 775 mm / 30.3 in. Its dry weight is 178 kg / 392.4 lbs and has a fuel capacity of 14 Litres / 3.7 US gal.
Technical specifications:
Make Model: Honda CBR 450SR
| Year | 1989-90 |
|---|---|
| Engine | Four stroke, Transverse four cylinder, DOHC, 3 valve per cylinder. |
| Capacity | 447 cc / 27.2 cu-in |
| Bore x Stroke | 75 x 50.6 mm |
| Compression Ratio | 9.2:1 |
| Cooling System | Liquid cooled |
| Induction | Keihin 31.3 mm carburetor |
| Oil Capacity | 2.6 Litres |
| Ignition | CDI |
| Starting | Electric |
| Max Power | 46.5 hp / 33.6 KW @ 8500 rpm |
| Max Torque | 4.2 Nm / 4.1 kgf-m / 29.5 ft.lbs @ 7000 rpm |
| Transmission | 6 Speed |
| Final Drive | Chain |
| Frame | Dual side box beam in steel tubes |
| Front Suspension | 37 mm telescopic fork |
| Front Wheel Travel | 140 mm / 5.5 in |
| Rear Suspension | Monoshock Box Section Swingarm |
| Rear Wheel Travel | 110 mm / 4.3 in |
| Front Brakes | 2x 275mm discs 2 piston calipers |
| Rear Brakes | Single 220mm disc 1 piston caliper |
| Front Tyre | 110/80-R17 |
| Rear Tyre | 130/70-R17 |
| Dimensions | Length 2010 mm / 79.1 in Width 720 mm / 28.3 in Height 1120 mm / 44.0 in |
| Wheelbase | 1370 mm / 53.9 in |
| Ground Clerance | 140 mm / 5.5 in |
| Seat Height | 775 mm / 30.3 in |
| Dry Weight | 178 kg / 392.4 lbs |
| Fuel Capacity | 14 Litres / 3.7 US gal |
