Honda CBR250RR (1991-92)

The Honda CBR250RR (1991-92) motorcycle has a four-stroke, transverse four-cylinder, DOHC engine with three valves per cylinder, a capacity of 447cc/27.2 cu-in, and a compression ratio of 9.2:1. It features liquid cooling and a Keihin 31.3mm carburetor, and has an oil capacity of 2.6 liters. The CDI ignition powers an electric start, and the motorcycle can generate a maximum power of 46.5 hp/33.6 KW at 8500 rpm and a maximum torque of 4.2 Nm/4.1 kgf-m/29.5 ft.lbs at 7000 rpm. The six-speed transmission drives the motorcycle through its final chain drive, and the frame is a dual side box beam made of steel tubes. The front suspension is a 37mm telescopic fork, and the rear is a monoshock box section swingarm, both offering a travel distance of 140 mm/5.5 inches and 110 mm/4.3 inches, respectively. The front brakes consist of 2x 275mm discs with 2-piston calipers, and the rear brake uses a single 220mm disc with a 1-piston caliper. The motorcycle sits on 110/80-R17 front tires and 130/70-R17 rear tires, with dimensions of 2010 mm/79.1 in length, 720 mm/28.3 in width, and 1120 mm/44.0 in height. Its wheelbase measures 1370 mm/53.9 in, and it has a ground clearance of 140 mm/5.5 in and a seat height of 775 mm/30.3 in. The motorcycle has a dry weight of 178 kg/392.4 lbs and a fuel capacity of 14 liters/3.7 US gal.

---

Technical specifications:

Make Model: Honda CBR 450SR

Year: 1991-92

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