Suzuki GSX-R Motorcycle Forums Gixxer.com banner
21 - 25 of 25 Posts
I still can't get mine calibrated correctly. 12 o'clock labs told me to use a -5% correction ratio...but I rode along-side a Honda Civic today at about 70 mph, and I'm still showing about 2-3 mph fast.

Is GPS the most effective/ accurate method of calibrating?
 
when i calibrated toofy's, i used a gps. i also did 3 different speeds, and calculated the percentage difference averaging all 3. it was very easy, between 24%-26%, so i just used 25%, and his speedo is spot on right now.
 
21 - 25 of 25 Posts