12-18-2017, 11:18 AM
Every bike I have ridden, and had a gps to check the accuracy of the speedo has shown 5-7% error. The exception was the BMW K100's which had a way to adjust to fine tune the reading.
A way to roughly check accuracy is to use the mile markers and the clock. @ 60 mph you are moving 1 mile per minute. On a rural stretch of interstate, preferably. So, in ten minutes at 60 mph - 10 miles, at 66 mph- 11 miles, at 72 mph - 12 miles, etc.
As to the traffic in town, around here 10 to 15 over the posted is pretty normal. Riding at the limit will get one run down from behind. I avoid the interstate slab like a slow root canal with out Novocain.
Jim
A way to roughly check accuracy is to use the mile markers and the clock. @ 60 mph you are moving 1 mile per minute. On a rural stretch of interstate, preferably. So, in ten minutes at 60 mph - 10 miles, at 66 mph- 11 miles, at 72 mph - 12 miles, etc.
As to the traffic in town, around here 10 to 15 over the posted is pretty normal. Riding at the limit will get one run down from behind. I avoid the interstate slab like a slow root canal with out Novocain.
Jim