Honda CBR250RR (1989-90)

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