2025 Aprilia RS 660 Extrema vs 2018 Honda CMX500 Rebel

The Aprilia RS 660 Extrema records higher power, higher torque, a lower weight and larger displacement than the Honda CMX500 Rebel.

Recorded specification differences

  • Manufacturer: Aprilia RS 660 Extrema Aprilia, Honda CMX500 Rebel Honda
  • Model: Aprilia RS 660 Extrema Aprilia RS 660 Extrema, Honda CMX500 Rebel Honda CMX500 Rebel
  • Year: Aprilia RS 660 Extrema 2025, Honda CMX500 Rebel 2018
  • Displacement: Aprilia RS 660 Extrema 659, Honda CMX500 Rebel 471
  • Power: Aprilia RS 660 Extrema 100, Honda CMX500 Rebel 47
  • Torque: Aprilia RS 660 Extrema 67, Honda CMX500 Rebel 43
  • Weight: Aprilia RS 660 Extrema 180, Honda CMX500 Rebel 190
  • Seat height: Aprilia RS 660 Extrema 82, Honda CMX500 Rebel 69
Aprilia RS 660 Extrema vs Honda CMX500 Rebel key specifications
SpecAprilia RS 660 ExtremaHonda CMX500 Rebel
Year20252018
CategorySportSport
Displacement659471
Power10047
Torque6743
Weight180190

Power

The Aprilia RS 660 Extrema records 100 hp, 53 hp (112.8%) more than the Honda CMX500 Rebel at 47 hp.

Torque

The Aprilia RS 660 Extrema records 67 Nm of torque, 24 Nm (55.8%) more than the Honda CMX500 Rebel at 43 Nm.

Weight

The Aprilia RS 660 Extrema records a lower wet weight of 180 kg, 10 kg less than the Honda CMX500 Rebel at 190 kg.

Displacement

The Aprilia RS 660 Extrema records 659 cc, 188 cc (39.9%) more than the Honda CMX500 Rebel at 471 cc.

Seat height

The Aprilia RS 660 Extrema has a higher recorded seat height (82) than the Honda CMX500 Rebel (69), a difference of 13.

Power-to-weight

The Aprilia RS 660 Extrema has the higher power-to-weight figure at 0.556 hp/kg, compared with 0.247 hp/kg for the Honda CMX500 Rebel.

Frequently asked questions

Which motorcycle records more power, the Aprilia RS 660 Extrema or the Honda CMX500 Rebel?

The Aprilia RS 660 Extrema records 100 hp, 53 hp (112.8%) more than the Honda CMX500 Rebel at 47 hp.

Which motorcycle records more torque, the Aprilia RS 660 Extrema or the Honda CMX500 Rebel?

The Aprilia RS 660 Extrema records 67 Nm of torque, 24 Nm (55.8%) more than the Honda CMX500 Rebel at 43 Nm.

Which motorcycle records the lower weight, the Aprilia RS 660 Extrema or the Honda CMX500 Rebel?

The Aprilia RS 660 Extrema records a lower wet weight of 180 kg, 10 kg less than the Honda CMX500 Rebel at 190 kg.

Which motorcycle records larger displacement, the Aprilia RS 660 Extrema or the Honda CMX500 Rebel?

The Aprilia RS 660 Extrema records 659 cc, 188 cc (39.9%) more than the Honda CMX500 Rebel at 471 cc.

How do the recorded seat heights of the Aprilia RS 660 Extrema and the Honda CMX500 Rebel compare?

The Aprilia RS 660 Extrema has a higher recorded seat height (82) than the Honda CMX500 Rebel (69), a difference of 13.

Which motorcycle has the higher power-to-weight figure, the Aprilia RS 660 Extrema or the Honda CMX500 Rebel?

The Aprilia RS 660 Extrema has the higher power-to-weight figure at 0.556 hp/kg, compared with 0.247 hp/kg for the Honda CMX500 Rebel.

VS
Aprilia logo

Aprilia RS 660 Extrema

2025Sport

Displacement659 cc
Power100 hp
Honda logo

Honda CMX500 Rebel

2018Sport

Displacement471 cc
Power47 hp

Most searched

Ask about these

Ask which bike fits daily rides, touring, or a first motorcycle. Both models stay in context.

Better
Worse

Aprilia RS 660 Extrema

2025 • Sport

Honda CMX500 Rebel

2018 • Sport

Engine & Performance

Engine Displacement
659 cc
471 cc
Power
100 hp
47 hp
Torque
67 Nm
43 Nm
Engine Details
DOHC
DOHC
Power / Weight
0.6024 hp/kg
0.247 hp/kg
Valves / Cylinder
4
4
Compression Ratio
13.5:1
10.7:1

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
Telescopic
Rear Suspension
Monoshock
-

Brake System

Front Brakes
Disc x2 ABS
Disc
Rear Brakes
Disc ABS
Disc

Tires & Wheels

Front Tyre
120/70-ZR17
130/90-16
Rear Tyre
180/55-ZR17
150/80-16

Dimensions & Weight

Length
-
219 cm
Height
-
109 cm
Seat Height
82 cm
69 cm
Wheelbase
137 cm
148.8 cm
Ground Clearance
-
14 cm
Dry Weight
166 kg
-
Wet Weight
180 kg
190 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.