2013–2017 · Supersport · Buyer's Guide
636cc That Actually Corners
The ZX636E runs 636 cc in a class that usually stops at 600, and Kawasaki spent that extra displacement on spread rather than on a headline. You get 128 hp and 51 lb-ft, with enough drive low in the range that the bike still works on a road where a strict 600 wants revs before it does anything. Traction control and ride modes are standard, fork and shock are adjustable at both ends, and a slipper clutch takes the sting out of hard downshifts. ABS was an option rather than fitted to every bike, so check the one in front of you.
This is a supersport somebody clearly rode on public pavement before signing it off. Back the clickers off and it stays civil at everyday pace; wind them up and it holds a line with the kind of composure that rewards a rider who knows where the apex is. It ages like most Kawasaki hardware: the running gear takes miles without drama, and the parts supply behind it is deep enough that setup changes and crash repairs stay cheap. The honest caveat is the ergonomics. At 32.7 in of seat height and 423 lb wet, on clip-ons, it asks for commitment. Riders who want soft weekend transport should look elsewhere.
Spec sheets don't ride bikes, but they set the baseline.
| Power | 128 hp (94 kW) |
|---|---|
| Torque | 51 lb-ft (69 Nm) |
| Displacement | 636 cc |
| Engine | Inline-four |
| Cooling | Liquid-cooled |
| Gearbox | 6-speed |
| Final drive | Chain |
| Fork | Upside-down (USD) |
| Front brake | 310 mm |
| Front tire | 120/70-17 |
| Rear tire | 180/55-17 |
| Seat height | 32.7 in (830 mm) |
| Wet weight | 423 lb (192 kg) |
| Fuel capacity | 4.5 gal (17 L) |
| Top speed | 160 mph (257 km/h) |
| Fuel economy | 34 mpg (US) |
Equipment check
Chassis
Drivetrain
Safety
Cold, an early bike can make you wait. Two or three attempts, a catch and a stall, then a lumpy idle until the enrichment sorts itself out. Warm, the four takes on that hard metallic edge past the middle of the tach, and the vibration stays fine grained rather than numbing your palms. The riding position is committed without being cruel. Weight sits on your wrists at a stoplight and lifts off the moment you get moving. At real road pace you read the bike through the pegs and the tank more than through the bars, which is why a long day leaves your legs tired before your shoulders. Wind protection is what the fairing shape promises and no more. Figure about 150 miles between fuel stops at 34 mpg.
Veering right when riding with no hands
Several early owners report that the bike drifts to the right when hands are removed from the bars at moderate speeds. Possible alignment or tire-related issue.
Hard start and rough idle when cold
Some 2013 models required multiple starter attempts in the morning, with the engine starting and then dying until it eventually caught, followed by rough idling until the cold-start enrichment kicked in.
Where this Kawasaki Ninja ZX-6R pulls ahead of — or falls behind — its rivals on the numbers, and the typical bike in its class on character.
Power
Torque
Displacement
Wet weight
Top speed
Seat height
Forget spec-sheet bragging. Here's who the Ninja ZX-6R is actually built for.
For Angeles Crest and the passes behind LA, this is the right tool. The low-range drive keeps you from rowing the gearbox between corners, and the lean clearance is never the limit.
Made for Angeles Crest Highway · Coronado Trail / US 191 · Highway 1 / Big Sur
A serious trackday bike that will not scare you off it. Adjustable at both ends, stable under speed, and cheap enough to run that you can spend the savings on tires and setup.
Made for Barber Motorsports Park · WeatherTech Raceway Laguna Seca · Circuit of the Americas
On the Dragon and Cherohala, precision beats horsepower, and that is exactly this bike's strength. It holds a tight line all day, though the seat height and riding position ask something of you.
Made for Back of the Dragon · Blue Ridge Parkway · Cherohala Skyway
If you're cross-shopping the older generation, here's what changed.
Previous generation · 2009–2012
Wide Open From Corner Entry
Compare to the previous model →If this one isn't quite the fit, these are the bikes worth riding back-to-back against it.
Any price note compares both bikes at the same age — the youngest age both have on the used market — against this Kawasaki Ninja ZX-6R. “cheaper/pricier” is what that bike costs second-hand, not how worn it is.
Successor · 2019–2024
636cc Of Pure Corner Reward
Competitor · 2013–2017
Triple Soul, Serious Corners
About the same used price as this bike at 9 yr
Competitor · 2013–2017
The Triple That Corners Hardest
Roughly $1,100 cheaper used than this bike at 9 yr
Competitor · 2007–2016
Sharp Chassis, Honda Reliability
About the same used price as this bike at 10 yr
Competitor · 2008–2016
Track Weapon, Street Optional
Competitor · 2008–2010
Lean Hard, Drive Clean