yzf-r1

Yep - 74 mph with the Riva speed delimiter, hull tubes removed/cut down, exhaust filter removed, and 1/3 tank of gas (ambient temp = 79 F) - essentially stock machine

The 300 is king - and only now are people experimenting with aftermarket ECUs and other mods, there will be more speed to come.

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2011 Kawasaki 300X with Riva override - leaving SeaDoos for dead

YamaDoo

Impressssive.

Kawijr300x

Sweet know what ill be doi g to my 300x this winter lol

yzf-r1

It's going to be fun smacking down more Sea Doos next year

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2011 Kawasaki 300X with Riva override - leaving SeaDoos for dead

yzf-r1

Only another month to go...

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2011 Kawasaki 300X with Riva override - leaving SeaDoos for dead

Outlaw

Thats too funny

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2006 RXT with RIVA STAGE THREE KIT 295 HP

2009 RXT-IS 255 HP

2008 GTX 215 HP



Land Rocket - 2003 Z06 Corvette, Chevy

yzf-r1

Smokin Sea Doos at will on big lakes with heavy traffic, your top speeds on glass won't mean shit!

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2011 Kawasaki 300X with Riva override - leaving SeaDoos for dead

CrAiGzEE

That almost seems to fast for me! when is enough enough? have you ever come off at that speed?

yzf-r1

No, but this is another reason I prefer the Ultra hull: great stability in the rough.

In fact, Ultras finished top 9 positions at this years Mark Hahn endurance race
Kawasaki Racing Latest News
Mark Hahn Race

People who say Kawasaki doesn't build reliable engines don't know what they're talking about, and certainly don't have experience with endurance racing

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2011 Kawasaki 300X with Riva override - leaving SeaDoos for dead