Yamaha YZF-R7

Yamaha YZF-R7

File:YAMAHA YZF-R7.JPG
Manufacturer	Yamaha
Also called	Yamaha R7 Yamaha OW-02
Production	1999
Predecessor	Yamaha YZF750
Class	Sport bike (homologation special)
Engine	749 cc (45.7 cu in) liquid-cooled 4-stroke 20-valve DOHC inline-4
Bore / stroke	72.0 mm × 46.0 mm (2.8 in × 1.8 in)
Compression ratio	11.4:1
Power	106 hp (79.0 kW) @ 11,000 rpm
Torque	72 N·m (53.1 lb·ft) @ 8,000 rpm
Transmission	6-speed constant mesh
Suspension	Front: 43 mm Öhlins inverted telescopic forks, preload, compression and rebound damping adjustable Rear: Öhlins piggy-back, preload, compression and rebound damping adjustable
Brakes	Front: Dual hydraulic disc with 4-piston Rear: Single hydraulic disc with dual piston
Tires	Front: 120/70ZR17 Rear: 180/55ZR17
Wheelbase	1,400 mm (55.1 in)
Dimensions	L: 2,060 mm (81.1 in) W: 720 mm (28.3 in)
Seat height	840 mm (33.1 in)
Weight	176 kg (388.0 lb) (dry)
Fuel capacity	23 L (6.1 US gal)

The Yamaha YZF-R7 or OW-02 is a race homologation motorcycle of limited production run of only 500 units. It was designed to compete in the Superbike World Championship and Suzuka 8 Hours endurance races.

It has a 749 cc (45.7 cu in), DOHC 20-valve (5 valves per cylinder) inline-four engine producing 106 hp (79.0 kW), or 139 hp (103.7 kW) when the other, unused bank of fuel injectors is activated, and over 162 hp (120.8 kW) in race trim.

The R7 was built for racing 'out of the box', implied by the chassis, which was derived from information and geometry from the YZR500 machines of the period. The R7 was specified with Öhlins suspension components, a shortened Deltabox II frame and weight of just slightly over the 162 kg (357 lb) minimum of superbike regulations.

The intentions of the R7 were further underlined, with its designation of "OW-02" and the lack of any pillion/passenger provision.