zr550 top speed

I hit 110 mph on my Zephyr 550 the other day and still had a 1000 rpm to go till the 10000rpm redline. I haven't found any good top speed stats online, but I'm guessing it's 119mph like the GPZ550. I was kind of (pleasantly) surprised how well she kept pulling.

These bikes might be termed "small fours" but they are definitely not "slow fours"

ride safe

For theory, play with this:
www.gearingcommander.com/
My GPz can regularly hit 120 mph with no problem, but actual results may vary.

Also keep in mind that Kawasaki speedometers are notoriously optimistic, often 8-10%.

I had mine near 120 many times. I don't use a speedometer. I use an electronic tach that I calibrate on a scope, then convert that mph. All of the chain-drive KZ bottom ends used the same gearing. I'm not sure if the ZR did as well, or not.

loudhvx wrote: I had mine near 120 many times. I don't use a speedometer. I use an electronic tach that I calibrate on a scope, then convert that mph. All of the chain-drive KZ bottom ends used the same gearing. I'm not sure if the ZR did as well, or not.

The ZR550 and GPz550 use the same 6 speed gearing.