A 500cc Ninja "dangerously underpowered"? You've got to be kidding.
- Mark
Nope, I wasn't kidding! Well... at least the Ninja 500 my wife and I test drove during our process of finding her a bike. It was a one year old used Ninja 500 (2004 model), with fairly low miles and looked to be in excellent condition; no obvious transmission or head gasket leaks, etc. I found the 500 to be very slow to build rpm, to the point where I'd be nervous out on the highway with it. During my test drive, rolling along at about 35mph, I racked the throttle to the stops.., then I waited for it to accelerate, ZZZZzzzzz. I was so disappointed in the power of this bike, I could not believe it! Heck, I've been riding for over 40 years (many different makes and models), and even sold motorcycles for a living for awhile, and never felt a 500 this under-powered! I remember driving Kawasaki 500cc 2-stroke triples of yester-year, that were rocket fast (for their day)! My first thought was, surely this
particular Ninja 500 had to be a lemon. When I returned with it to the dealership, I asked that their senior tech take the bike for a spin and let me know if it was running correctly. (On the plus side, it was idling very nicely.) The tech brought it back and said, "Yep, it's running fine." Even my wife, who hadn't ridden in years, (and back then she owned a 175cc 2-stroke Kawi Enduro), thought the Ninja 500's engine was weak. I have no doubt this particular Ninja 500 could
eventually do most any speed limit..., eventually
... but I sure wouldn't want to try passing a semi on a steep up-hill grade with it! Don't get me wrong, I'm not trying to slam the Ninja 500. I'm sure it fits certain riding conditions perfectly. But it is, what it is - and it wasn't what my wife was looking for.
In comparison, my wife's Kawi Z750S has plenty of power; granted 250cc's more displacement, but like night and day, compared to that Ninja 500 we test drove.
It shouldn't be too difficult for a manufacturer to come up with a smaller (800-1000cc) in-line 4 (or 3) cylinder engine for a scaled back FJR. Heck, back in the late 70's Kawasaki built a "250cc Triple" (with pistons about the size of large thimbles).
What concerns me more with a scaled down FJR would be the reduction in suspension travel, and ground clearence, which would probably be required to get the seat height down to around 28 or 29".
SR-71