2025 Kawasaki Z650RS vs 2025 Kawasaki Z900RS

The Kawasaki Z650RS records a lower weight than the Kawasaki Z900RS. The Kawasaki Z900RS has the advantage in recorded torque and displacement where both recorded values are available.

Recorded specification differences

  • Model: Kawasaki Z650RS Kawasaki Z650RS, Kawasaki Z900RS Kawasaki Z900RS
  • Displacement: Kawasaki Z650RS 649, Kawasaki Z900RS 948
  • Torque: Kawasaki Z650RS 64, Kawasaki Z900RS 98.5
  • Weight: Kawasaki Z650RS 187, Kawasaki Z900RS 215
  • Seat height: Kawasaki Z650RS 82, Kawasaki Z900RS 83.5
Kawasaki Z650RS vs Kawasaki Z900RS key specifications
SpecKawasaki Z650RSKawasaki Z900RS
Year20252025
CategoryClassicClassic
Displacement649948
Power67.3-
Torque6498.5
Weight187215

Torque

The Kawasaki Z900RS records 98.5 Nm of torque, 34.5 Nm (53.9%) more than the Kawasaki Z650RS at 64 Nm.

Weight

The Kawasaki Z650RS records a lower wet weight of 187 kg, 28 kg less than the Kawasaki Z900RS at 215 kg.

Displacement

The Kawasaki Z900RS records 948 cc, 299 cc (46.1%) more than the Kawasaki Z650RS at 649 cc.

Seat height

The Kawasaki Z900RS has a higher recorded seat height (83.5) than the Kawasaki Z650RS (82), a difference of 1.5.

Frequently asked questions

Which motorcycle records more torque, the Kawasaki Z650RS or the Kawasaki Z900RS?

The Kawasaki Z900RS records 98.5 Nm of torque, 34.5 Nm (53.9%) more than the Kawasaki Z650RS at 64 Nm.

Which motorcycle records the lower weight, the Kawasaki Z650RS or the Kawasaki Z900RS?

The Kawasaki Z650RS records a lower wet weight of 187 kg, 28 kg less than the Kawasaki Z900RS at 215 kg.

Which motorcycle records larger displacement, the Kawasaki Z650RS or the Kawasaki Z900RS?

The Kawasaki Z900RS records 948 cc, 299 cc (46.1%) more than the Kawasaki Z650RS at 649 cc.

How do the recorded seat heights of the Kawasaki Z650RS and the Kawasaki Z900RS compare?

The Kawasaki Z900RS has a higher recorded seat height (83.5) than the Kawasaki Z650RS (82), a difference of 1.5.

VS
Kawasaki logo

Kawasaki Z650RS

2025Classic

Displacement649 cc
Power67.3 hp
Kawasaki logo

Kawasaki Z900RS

2025Classic

Displacement948 cc

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Better
Worse

Kawasaki Z650RS

2025 • Classic

Kawasaki Z900RS

2025 • Classic

Engine & Performance

Engine Displacement
649 cc
948 cc
Power
67.3 hp
-
Torque
64 Nm
98.5 Nm
Engine Type
Other
-
Engine Details
Other | DOHC | Cylinder: 2
DOHC
Power / Weight
0.3869 hp/kg
-
Valves / Cylinder
-
4
Compression Ratio
10.8:1
10.8:1

Fuel & Capacity

Fuel System
Injection
Injection
Cooling System
Liquid-cooled
Liquid-cooled
Starter
Electric
Electric

Transmission & Drive

Gearbox
Manual 6-speed
Manual 6-speed
Transmission
Chain
Chain

Chassis & Suspension

Front Suspension
Telescopic
Inverted
Rear Suspension
-
Swing-Arm

Brake System

Front Brakes
Disc x2 ABS
Disc x2 ABS
Rear Brakes
Disc ABS
Disc ABS

Tires & Wheels

Front Tyre
120/70-ZR17
120/70-ZR17
Rear Tyre
160/60-ZR17
180/55-ZR17

Dimensions & Weight

Length
206.5 cm
211 cm
Height
111.5 cm
115 cm
Seat Height
82 cm
83.5 cm
Wheelbase
140.5 cm
147 cm
Ground Clearance
12.5 cm
13 cm
Dry Weight
174 kg
-
Wet Weight
187 kg
215 kg

Disclaimer: The technical specifications, performance values, ride profile analyses, match scores, and other data presented on this page are compiled for informational purposes and processed through algorithmic calculations. Their source, license, and commercial-use rights are not fully documented. This information does not constitute a definitive, official, or binding reference. Actual values may vary depending on the model year, market, equipment options, riding conditions, and individual use. Before making a purchase decision, we strongly recommend consulting an authorized dealer or the manufacturer for verified and up-to-date specifications. RPMVault assumes no liability for any decisions made based on the information provided on this page.