Has anyone checked speedo accuracy?

[bramfrank]

My Canadian ES indicates 119 for a real 108 (kph).

I've written the speedo healer people to see if anyone has interfaced one to an ES (traction control concerns).

 

[07FJRVegas]

Over numerous checks, my 11 shows 130 km/hr on the speedo and the GPS shows 120. I've ordered a SpeedoHealer for this bike. Interestingly my 07 is almost spot on.

 

[Drmoto]

BramFrank has SpeedoHealer answered that there SH-U01 is Ok with an ES ?

I'm wanting to fix my 8% error 130km/h = 120km/h Real speed (108 = 100km/h)