Because an aquaintance of mine runs a race shop down round Hollywood Florida and he gave me the rear wheel dyno stats on his Kawa Voyager and they were much less than the advertised stats of 108 ft lbs.
He also told me that kawa admitted to him their stats are taken under controlled conditions. As far as Harley stat conditions I don't know. From my personal seat gravity I'd guess the HD stats are closer to rear wheel than my Kawa 1700 bagger is. But it's hard to judge since my bagger weighs 830 lbs as compared to the 650lbs of my old Street Bob. The Street Bob with it's nearly 200lbs less weight, V&H's pipes, Doebeck TFI and SE Big Air, accelerated noticably stronger than my zero miles unbroken in, and completely EPA strangled Kawa Nomad. But it sure did not ride as nice.
Maybe HD will say yay or nay if you ask around enough. They might be more forthcoming with it than they were their battery stats. Awhile back when I tired to find the amp hours and cold crank amps for the HD battery, but they simply were not available anywhere online or at the HD site. The local HD shop told me they did not have those stats but they were good batteries. So I did some research of my own and bought a Deka battery with 18ah and plenty of cca to suit me. When I got it, it was identical in size, shape etc to the battery that came from HD. Penn Manufacturing makes batteries for HD, Deka is owned by Penn Manufacturing. Of course it was $50 less than the local HD battery.
But to the OP I wouldn't worry what the stats are based on. Test ride any bike you are interested in (and even some you ain't to compare). If it ain't enough then there is always (while it's yet legal) the EPA freedom items put out by aftermarket folks.
Of course, I was just kidding. As of the last time we met, you had indicated an interest in a Kawasaki. Clearly you have bought that now. Back then I was ribbing you a bit. That is what I was referring too.