Honda CBR250

This article is about the 1986–1996 Japanese domestic market four-cylinder sport bike. For the 2011 single-cylinder model, see Honda CBR250R (2011).

Honda CBR250

CBR250RR with aftermarket paint job
Manufacturer	Honda
Also called	CBR250 (FG), (FG-YA), (H), (J), (K), (L), (N), (R), (R-II) MC14, MC17, MC19, MC22
Production	1986–1996
Class	Sport bike
Engine	250 cc (15 cu in) 4-stroke, inline 4
Top speed	180–200 km/h (110–120 mph)[citation needed]
Power	40–45 PS (29–33 kW)
Torque	23.5 N·m (17.3 ft·lbf) @ 11,500 rpm
Weight	approx 142 kg (310 lb) (dry) approx 157 kg (350 lb) (wet)

The CBR250 series of motorcycles was produced by Honda between 1986 and 1996. It is a lightweight sport bike with a six-speed gearbox and a 250 cc (15 cu in), four-cylinder, four-stroke engine capable of revving up to 19,000 rpm. In 2011, Honda introduced the completely new CBR250R with a lower-revving, single-cylinder engine which revs up to 10,500 rpm, made in Thailand and marketed worldwide.

Model history

Years	Model	Description
1986	CBR250 (FG) and (FG-YA) MC14	Twin front disks, single front headlight, bikini fairings.
1987	CBR250R (H) MC17	Twin front disks, still single head light, full fairings.
1988	CBR250R (J) MC19	Single larger front disk, smaller chain, twin head lights, fuel pump.
1989	CBR250R (K) MC19	Essentially identical to the R(J), except now had a speed limiter which was set at 185 km/h.
1990–1991	CBR250RR (L) MC22	A completely redesigned bike that had a new cast/pressed aluminum frame that gave a more aggressive riding position, gull shaped swing arm that was adopted from the NSR250R, higher rising tail, six spoke cast aluminum wheels and dual front 276 mm (10.9 in) floating disk brakes. These changes resulted in a dry weight of 142 kg (310 lb). The only feature that was adopted from the previous model CBR250s was the MC14E engine. This was slightly modified with a crankshaft that had 27.5 mm small-end journals, up 0.5 mm from the previous 27 mm journals. The engine also used a completely new set of VP carburetors that had smaller throats, reduced from 32 mm to 30.5 mm. These carburetors were fed by a vacuum operated pump for fuel delivery.
1992–1993	CBR250RR (N) MC22	Essentially the same as the RR(L) except for new paint jobs.
1994–1996	CBR250RR (R) MC22	Still very similar to the RR(L/N) but restricted to producing 40 PS (29 kW) due to changes in Japanese law. The restrictions were in the cylinder head, head gasket and ignition unit. Redline reduced to 18,500 rpm (from 19,000 rpm).
1997–1999	CBR250RR (RII) MC22	These are identical to the RR(R), and are leftover bikes that were built in the 1994 to 1996 era, but sold in 1997 and 1998.

Bike details

Initially these bikes were only sold new in Japan, and later the CBR250RR was sold new in Australia. But they can be found in almost any country of the world. In countries which have a 250 cc learner capacity limit, the CBR250RR is one of the most powerful 4-stroke bikes a learner is allowed to ride.^{[citation needed]} The CBR250RR has six gears, and revs just under 9,000 rpm at 100 km/h (62 mph). The engine uses gear-driven cams.

The suspension on the bike was basic with non-adjustable front forks and a rear monoshock with adjustment for preload only.

The CBR250RR(R) is known as the 'tri-colour' due to the fact that most (but not all) of the official bikes came in that particular colour scheme. Other than the engine restrictions, this model had several additional differences to its predecessors (L & N models). The bike had more powerful low-beam headlights coupled to a new relay which was automatically deactivated by the start/crank button on the handlebar. This changed the pinout of the switchgear and kill-switch. The carburettor rubber boots were smaller on the CBR250RR(R) than the imports.

Specifications

All specifications are manufacturer claimed except as stated.

Year	1986	1987	1988–1989	1990–1993	1994–1999
Model	CBR250 (FG) and (FG-YA) MC14	CBR250R (H) MC17	CBR250R (J) and (K) MC19	CBR250RR (L) and (N) MC22 'Jap spec'	CBR250RR (R) and (R-II) MC22 'Tri-colour'
Engine type	MC14e - 4-stroke - 16-valve - Liquid-cooled - Inline four
Displacement	249 cc (15.2 cu in)
Bore/stroke	48.5 × 33.8 mm (1.91 × 1.33 in)
Power	45 PS (33 kW) @ 14,500 rpm	45 PS (33 kW) @ 15,000 rpm			40 PS (29 kW) @ 14,500 rpm
Maximum torque			25.5 N·m (18.8 ft·lbf) @ 10,500 rpm	21.5 N·m (15.9 ft·lbf) @ 12,000 rpm	23.5 N·m (17.3 ft·lbf) @ 11,500 rpm
Compression ratio			11.0:1	11.5:1
Fuel Delivery			VG05	VP 20
Transmission	6-speed
Final drive	0-ring Chain
Rake/trail				Rake & Trail Angles: 24 / 89 mm
Front Tire Size			100/80-17	110/70-17
Rear Tire Size			140/70-17	140/60-17
Wheelbase			1365 mm	1,345 mm (53.0 in)
Front Brake Type	Dual disc 2-piston calipers		Single disc	Dual 275 mm discs with 2-piston calipers
Rear Brake Type	Single disc 1-piston caliper			220 mm disc with 1-piston caliper
Fuel Tank Capacity	14 l (3.1 imp gal; 3.7 US gal)		13 l (2.9 imp gal; 3.4 US gal)
Seat Height				725 mm (28.5 in)	735 mm (28.9 in)
Dry Weight				142 kg (313 lb)	143 kg (315 lb)
Wet Weight				157 kg (346 lb)	158 kg (348 lb)
Fuel Economy				40.0 km/L (113 mpg-imp; 94 mpg-US)
Headlights	Single front Headlight		Dual front Headlights
Market Availability	Japanese domestic market		Japanese domestic market and frequently grey-imported into Australia		Australia and Japanese domestic market

Note: Many sources incorrectly list the dry weight of the CBR250RR as being about 157 kg (346 lb). This is the wet weight.

References

• Total Motorcycle 1991 model specs
• Total Motorcycle 1998 model specs