Kawasaki Ninja 250R
From Wikipedia, the free encyclopedia
 |
| Ninja 250s on the track |
The Kawasaki Ninja 250R (also known as the EX250 in the U.S., and GPX250 elsewhere in the world) is a long-standing model in Kawasaki's lineup, introduced in 1986 and continuing in production as of 2007. The 2007 model has an RRP of $AU5,990.00 + ORC. The 250R is marketed as an entry-level sport motorcycle intended for normal use on paved roads. Compared to present industry designs, the 250R is more a "sporty-standard" motorcycle with a fairing than a true sportbike (considering its ergonomics, chassis design, and engine placement within the frame), but it is still an excellent sport machine. As of 2007, the 250R is produced in Thailand.
The 250R is light for a motorcycle, weighing just over 300 lb (135 kg) dry. Its 250 cc displacement, counterbalanced, water cooled four stroke engine is smooth for a twin-cylinder, and though not exceptionally powerful with 36 hp (27 kW) at best, it can easily maintain speeds in excess of 80 mph (130 km/h) while consuming fuel (87 octane) at 55 to 75 miles per gallon US (22 to 30 km/L) from its 4.8 US gallon (18 L) tank, and has a top speed of about 100 mph (160 km/h).
The Ninja 250 faces very little direct competition within its class inside the United States. The main competitors are the other 250cc "beginner bikes" priced around $3,000, namely Honda's Rebel 250 and Nighthawk 250, the Suzuki GZ250, and the Yamaha Virago 250. With the exception of the Nighthawk (a standard), these bikes are all cruisers. The disparity in style between a cruiser, a standard, and a sportbike is frequently the buyer's deciding factor, given that one's choice in bike is often as much about self-image as objective features. None of these bikes can match the Ninja 250's much greater power, 14,000 rpm redline, 6-speed gearbox, tachometer, and centerstand, nor do they offer both front and rear disc brakes. All of them have an advantage over the stock Ninja with their rear suspension preload adjustability, although the Kawasaki "Uni-Trak®" system is more advanced and may be upgraded. The cruisers also offer relatively low seat heights in the 26-27 inch range, an issue for some riders.
None of these US models, including the Ninja, have changed much in recent years, but outside the United States there are many exciting advances in small-displacement, lightweight, and/or low-cost motorcycles, including several four-cylinder, sixteen-valve 250's like Ninja ZXR250. That being said, the Ninja 250 enjoys a modest following among riders who appreciate its light weight and nimble handling as an amusing "track bike". The very fact that it hasn't changed much since 1988 means parts are plentiful and inexpensive.
Ninja 250 Twin Engine Models
- GPZ 250: model sold from 1986 to 1987. Also know as EX250-E.
- GPX 250: model sold in the USA and Australia from 1988 to present. Sold from 1988 to 1990 in other parts of the world. Changes in bodywork, wheels, suspension, electricals and some engine specifics from the E model. Also know as EX250-F.
- ZZR 250: sold primarily outside of the USA and Canada since 1991; Canada received this model in 2000, while the U.S. still has the EX250F model. Major rework including lateral aluminium frame, 17" wheels, adjustable rear shock, adjustable levers, reduced sprocket size, computer-controlled timing advance, electricals; same engine as the F model with different carbs (giving some extra HP's). Visual is almost identical to ZZR 600. Also know as EX250-H.
Other Ninja 250 models
- ZXR 250: model sold from 1988 to 1999. DOHC 16 valve 4 cylinder 4 carbs engine, red line at 18.500 (to 20.000 RPM); dual front discs and inverted fully adjustable front fork. A visual copy of ZXR 750. Also know as ZX-2R.
[NOTE] Kawasaki also appends a suffix to each model number, indicating the "sub model"; it increases with the model year. So, an EX250-E2 is a 1987 GPZ; an EX250-F2 is a 1988 GPX, an EX250-F14 is a 2000 GPX, and an EX250-H11 is a 2000 ZZR.
[edit] Specifications & performance statistics (1988-2005 EX250-F)
|
|
|
| Engine | 4-stroke Parallel twin, DOHC, Liquid cooled, 8-Valve, w/ counterbalancer |
| Displacement | 248 cc |
| Starting | Electric |
| Bore x stroke | 62.0 x 41.2 mm |
| Compression ratio | 12.4:1 |
| Carburetion | Keihin CVK30 (2), Constant velocity, diaphragm-type |
| Ignition | CDI (electronic advance) |
| Spark plug | NGK CR8HSA, CR8HIX, CR8HVX option CR7HSA, CR7HIX |
| Transmission | 6-speed, Constant mesh, Return shift |
| Clutch | Wet, Multi-disc, Manual, Cable-actuated |
| Frame | Tubular Diamond design |
| Rake/trail | 27 degrees/3.3 in (84 mm) |
| Suspension, front | Hydraulic telescopic fork |
| Suspension, rear | UNI-TRAK® system with single shock |
| Wheelbase | 55.1 in (1400 mm) |
| Wheel travel, front | 5.5 in (140 mm) |
| Wheel travel, rear | 5.1 in (130 mm) |
| Tire, front | 100/80x16 |
| Tire, rear | 130/80x16 |
| Brakes, front/rear | Single hydraulic disc |
| Overall length | 80.1 in (2034 mm) |
| Overall width | 28.0 in (711 mm) |
| Overall height | 43.1 in (1095 mm) |
| Ground clearance | 6.1 in (155 mm) |
| Seat height | 29.3 in (744 mm) |
| Weight dry/wet | 304/355 lb (138/161 kg) |
| Max load | 340 lb (154 kg) |
| Fuel capacity | 4.8 US gal (18 L) |
| Fuel type | Min 91 Research / 87 avg. octane unleaded |
| Oil capacity | 1.9 L |
| Oil type | SE-SG Class SAE 10W40-20W50 |
|
|
|
| 0-60 mph (0-100 km/h) | 5.75 s |
| 1/4 mile | 14.6 s @ 88 mph |
| Maximum speed | 105 mph (160 km/h) |
| Max power | 36 hp (27 kW) @ 11000 rpm, 26 hp (19 kW) @ rear wheel |
| Max Torque | 18 ft.lbf (24 Nm) @ 10000 rpm, 14 ft.lbf (19 Nm) @ rear wheel |
| Fuel Efficiency | 55-75 mpg US |
[edit] In Media
[edit] External links
- Kawasaki Ninja 250 FAQ Information Page
- Ninja 250 Riders Club Portal Page
- 250 cc comparison in Motorcycle Online
- 2000 Review comparison in Motorcycle Online
