Yamaha R7
73 hp, 689 cc, 414 lbs2022
Kawasaki ZX6R
125 hp, 599 cc, 428 lbs2007 - 2008
EngineYamaha R7Kawasaki ZX6R
Engine codeCP2
Displacement689 cc599 cc
Max power73 hp (@8 750 RPM)125 hp (@14 000 RPM)
Max torque49 lb ft (@6 500 RPM)48 lb ft (@11 700 RPM)
Redline10 000 RPM15 000 RPM
Idling speed1 200 RPM1 300 RPM
ManagementFuel InjectionFuel Injection
LayoutDOHC Inline-2DOHC Inline-4
Compression11.50:113.30:1
Oil capacity2.18 quart3.60 quart
Oil type10W40, 10W5010W40
Spark plug typeNGK LMAR8A-9NGK CR9E
CoolingLiquidLiquid
Valves816
Bore80.0 mm67.0 mm
Stroke68.6 mm42.5 mm
Throttle bore38.0 mm
Weight to power5.68 lbs/hp3.42 lbs/hp
Power to weight440 hp/2500lbs730 hp/2500lbs
Battery typeYTZ7S 12V 6Ah12V 8Ah
GearboxYamaha R7Kawasaki ZX6R
TypeSequentialSequential
ClutchSlipperSlipper
DriveChainChain
Chain typeEnuma EK520MVXL1, 112 links
Gears count06
Primary ratio1.9
Final drive2.688
1. gear2.8462.714 (79 mph)
2. gear2.1252.2 (98 mph)
3. gear1.6321.85 (117 mph)
4. gear1.31.6 (135 mph)
5. gear1.0911.421 (152 mph)
6. gear0.9641.3 (166 mph)
ChasisYamaha R7Kawasaki ZX6R
Frame typeDiamond steel frameTubular, diamond
Front susp.KYB 41mm USD, 5.12 in travel41mm Telescopic fork (USD) 120 mm travel
Rear susp.Monoshock, 5.12 in travelSwingarm (uni-trak) 5.24 in travel
Summary

The 2007-2008 Kawasaki ZX6R and the 2022 Yamaha R7 are both highly sought after motorcycles. The Kawasaki ZX6R was introduced in 2007 and was built using race technology, which made it a favorite amongst adrenaline seekers. The Yamaha R7 is a newer model that was released in 2022, featuring an upgrade in its design and modern technological advancements.

The Kawasaki ZX6R produced from 2007-2008 is a middleweight sports bike that has a 599cc four-stroke engine, capable of providing 124 horsepower at 14,000 rpm. This bike is best suited for seasoned riders who enjoy speed and excitement. The Yamaha R7, on the other hand, is also a middleweight sports bike, but with a 689cc four-stroke engine that provides 73 horsepower at 8,500 rpm. This bike is perfect for riders who are looking for speed and agility, but can also handle daily commuting.

The best point of the Kawasaki ZX6R is its superb suspension system which provides top-notch handling and stability on the road. The Yamaha R7 boasts modern features such as a quick-shifter and Bluetooth connectivity that allows riders to connect with their smartphones and other devices. The Yamaha R7 also has a shorter wheelbase, which provides better agility compared to the Kawasaki ZX6R.

The Kawasaki ZX6R is known for its exciting speed and high performance, making it perfect for thrill-seeking riders. It has a modern design with a stylish look that appeals to a younger audience. However, the 2007-2008 model has known issues with its transmission and a lack of low-end power. The Yamaha R7, on the other hand, provides riders with a smooth ride, refined power, and a comfortable seating position, which makes it perfect for those who enjoy long rides. It caters to a wide range of audiences with its modern features and design.

In conclusion, both the 2007-2008 Kawasaki ZX6R and the 2022 Yamaha R7 are fantastic middleweight sports bikes, each with their unique selling points. The Kawasaki ZX6R is a great option for experienced riders who are looking for high performance, whereas the Yamaha R7 caters to a wider range of riders who enjoy a versatile bike with modern features. Although both these bikes are great in their own right, they each have areas where they shine and areas where they let down.