...it's the same as with Manufacturer's 1/4 Mile claims also - there are so many relative factors.. did Mr Honda do a huge staging burnout and drop his tyre pressures down to 18PSi (etc).. air-temps, track temps, surface integrity, wind direction, altitude..

I think Nickasse is just trying to get some ballpark figures. As long as your tyres remain the same size as from the factory, 99% of all Honda speedo's i've ever seen have been fairly accurate regardless of age - they will all have a slight deviation - normally 3-5kms displayed over what the vehicle is actually doing.

I'm sure that for the purposes of this exercise - a rough time from a hand-held stopwatch will illustrate how quick the ITR's are off the line. stock versus mods etc.