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Motorcycle comparison · Sport Tourer

Honda CBR 650F (RC 74) vs Kawasaki ER-6f (ER6f-MY2006)

Honda CBR 650F vs Kawasaki ER-6f: which one you'd rather spend the big miles on.

Roll on the Honda CBR 650F and its inline-four spins up smoothly, but it doesn't rush until the needle swings high. The Kawasaki ER-6f's twin pulls hard through the midrange.

Honda CBR 650F (RC 74) and Kawasaki ER-6f (ER6f-MY2006) side by side
Honda CBR 650F (RC 74) 2014–2016 · Bulletproof Inline Four, No Fuss Kawasaki ER-6f (ER6f-MY2006) 2006–2017 · Reliable Middleweight That Simply Works

So which one do you buy?

The CBR 650F has the edge if…

Comfortable long-distance riding

By a nose: CBR 650F

The CBR 650F is slightly easier to live with on a long day. Slightly.

What makes each one tick

CBR 650F

The CBR 650F sits you upright behind the bar on a plush seat, and hours of commuting don't wear thin. Corner entry shows what the steel diamond frame does: the front tucks in right where it's aimed and stays settled through the arc. Rough roads at pace unsettle it. The engine's top end begs to be wrung out.

ER-6f

The ER-6f tucks a narrow waist under a 30.9 in (785 mm) seat, and its fairing keeps the worst of the wind off on the commute. There's grunt in the middle revs. A bump in a bend doesn't knock it off line, since the long swingarm keeps the compact chassis stable. The trellis frame flicks it from bend to bend.

Nils rode the ER-6f in Sicily in 2006 (NastyNils Testride).

The Voice of Experience

Portrait of NastyNils

What actually separates them

  • The ER-6f has the lower seat: 30.9 in (785 mm) vs 31.9 in (810 mm).
  • The ER-6f has the lower wet weight: 441 lb (200 kg) vs 465 lb (211 kg).
  • The CBR 650F makes more peak power: 87 hp (64 kW) vs 72 hp (53 kW).

See every difference ↓

Which one for the way you ride

These two run dead level on commuting, twisty roads, running costs, and a first bike. Sit on both in the showroom and trust what your body says.

Who each one is built for

Scenic Sport-Touring Escapist

Appalachian Technical Corner Rider

SoCal Canyon Performance Rider

What's good, and what you'll live with

CBR 650F

What owners say

Strengths

  • Smooth, polished inline-four engine
  • Light, agile handling
  • Excellent value for money

Trade-offs

  • Budget suspension components
  • Basic instrumentation and switchgear
  • Engine vibration at high rpm

ER-6f

What owners say

Strengths

  • Lively and flexible parallel-twin engine
  • Excellent value for money
  • Frugal fuel economy

Known problems to check before you buy

CBR 650F

No confirmed faults on file yet. That's not the same as fault-free.

ER-6f

  • Frame cracking at engine mounts (early models) On early models, the high-tensile steel trellis frame can develop stress cracks around the upper engine mounting brackets due to engine vibration and mounting stress.

What they share

Displacement
649 cc
Cooling
Liquid-cooled
Torque
47 lb-ft (64 Nm)
Gearbox
6-speed
Final drive
Chain
Fork
Telescopic
Front tire
120/70-17

Where the spec sheets split

Seat height and weight
CBR 650F ER-6f
Seat height 31.9 in (810 mm) 30.9 in (785 mm)
Wet weight 465 lb (211 kg) 441 lb (200 kg)
Engine, power and torque
CBR 650F ER-6f
Engine Inline-four Parallel twin
Power 87 hp (64 kW) 72 hp (53 kW)
Fuel tank capacity
CBR 650F ER-6f
Fuel capacity 4.6 US gal (17.3 L) 4.1 US gal (15.5 L)
Other specifications
CBR 650F ER-6f
Front brake 320 mm 300 mm
Rear tire 180/55-17 160/60-17

What comes fitted, what costs extra

CBR 650F ER-6f
Heated Grips Option Not offered
Luggage System Option Not offered

Head to head, area by area

Both bikes on the same scale, one area at a time.

Braking

Engine

Handling

Suspension

Comfort

Reliability

Practicality

Sporting Capability

Usability

Specs and equipment as of October 19, 2026. The riding calls use the same ratings behind both buyer's guides.