We see great numbers from manufacturers all the time. Then, we try to match them to no avail.
I used to drag race and was able to beat posted numbers after some fine tuning.
The manufacturers don't take a bike off of the showroom floor and go to the track, they
use specially prepared units. While the units are individually prepared, they are still considered
stock. Tricks that used to be used were just enough fuel to make the pass, mirrors removed.
ULTRA light rider etc. Not exactly sure what you could do to an electric bike other than to make
sure that it is at the maximum limit of performance specifications. In the early 1980s, Kawasaki
was pushing their GPz 750 as the first STOCK 750 to go into the 11 second bracket. One of the
magazines tore a test bike down to find out that the head was ported. Kawasaki's answer was
that they were all going to come with ported heads, so, a lucky few first adopters got bikes
with ported heads. We know that the Zeros are capable of this level of performance with
some massaging, just how much was done to the bikes to make the numbers would be the question.
Weight is probably the biggest factor. We used to figure 10 lbs. would equal 1 hp. If they used a 125 lb.
rider, and you are 225 lb. you would be at a 10 hp. handicap to the lighter rider.