Kawasaki Ninja ZX-7R
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| Manufacturer | Kawasaki Motorcycle & Engine Company |
|---|---|
| Also called | ZXR-750 - ZX-7 |
| Parent company | Kawasaki Heavy Industries |
| Production | 1989-2003 |
| Predecessor | GPX750R |
| Class | Sport bike |
| Engine | 748 cc (45.6 cu in) liquid-cooled dohc 16 valve in-line four-cylinder four-stroke |
| Bore / stroke | 73.0 mm × 44.7 mm (2.87 in × 1.76 in) |
| Compression ratio | 11.5:1 |
| Top speed | 150–163 mph (241–262 km/h) |
| Power | 104.0–109.2 hp (77.6–81.4 kW) (rear wheel) @ 11,500 rpm |
| Torque | 52.4–56.4 lb·ft (71.0–76.5 N·m) (rear wheel) @ 9,000 rpm |
| Frame type | Aluminum twin-spar |
| Suspension | Front: adjustable 43 mm inverted cartridge fork Rear: Uni-Trak (monoshock) swingarm |
| Brakes | Front: twin 320 mm (13 in) semi-floating front discs with Tokico six-piston calipers Rear: 230 mm (9.1 in) disc with twin-piston opposed caliper. |
| Tires | 120/70ZR17, 190/50ZR17 |
| Rake, trail | 25.0°, 3.9 in (99 mm) |
| Wheelbase | 56.5 in (1,440 mm) |
| Seat height | 780 mm (30.9 in) |
| Weight | 460 lb (210 kg) (dry) 518–527 lb (235–239 kg) (wet) |
| Fuel capacity | 18 l; 4.0 imp gal (4.8 US gal) |
| Oil capacity | 3,600 ml (3.8 US qt) |
| Related |
Kawasaki Ninja ZX-6R Kawasaki Ninja ZX-9R Kawasaki Ninja ZX-10R Kawasaki Ninja ZX-12R |
The Kawasaki Ninja ZX-7R was a motorcycle in the Ninja sport bike series from the Japanese manufacturer Kawasaki produced from 1989 until 2003. It remained largely unchanged through its production. 1991 saw updates with inverted forks added, and 1993 got updates with ram air just a single tube, then in 1996 more updates with twin tube ram air and Tokico six piston brakes and fully adjustable suspension.
Between 1989 and 1995 in the US market the ZXR-750 and ZXR-750R were known as ZX-7 and ZX-7R respectively. Starting from 1996 Kawasaki dropped the ZXR name worldwide the former ZXR-750 was now ZX-7R and the limited edition homologation special ZXR-750R started in 1991 was now ZX-7RR.
The ZX-7RR was raced, gaining 12 AMA superbike championship victories. Kawasaki's Road Racing team riders were Eric Bostrom, Doug Chandler and Scott Russell. Doug Toland won the 1993 Endurance FIM World Championship. Andreas Hofmann won the 1997 Macau Grand Prix.
The ZX-7R has a 749 cc in-line four-cylinder, four-stroke engine.
The frame used on the ZX-7R is a lightweight aluminum twin-spar item, designed using computer-aided design to optimize strength. The rear subframe was constructed using steel, providing enough strength for a pillion passenger.
The swingarm used largely the same fabrication techniques to produce a hollow cast and pressed aluminum alloy hybrid swingarm, and the Uni-Trak rear suspension system features a predominantly lightweight alloy and aluminum construction. The Uni-Trak system was designed to provide a progressively stiffer damping and spring rate under compression. The rear suspension unit is fully adjustable in terms of damping, preload and compression.
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Wikipedia