Helped me calibrate my speedometer – Speedometer Speed Box App Review

Some of you may know that auto manufacturers will set a "corrected" speed to show on your dash. This is often between 5-10% over your "true" speed which is displayed on those speed readers on the side of the road next to speed limit signs (AND this app). The likely reason for this is so you do not drive too fast by offering a buffer for your speed-demon. This app allowed me to estimate the differential of my "true" speed and my "corrected" speed. I then took these estimations to adjust my speedometers on my Triumph Daytona 675R(+6%), Suzuki SV650(+7%), and BMW 335i(+7%) via the obd connections and speedohealer. The only con I can think of is that apps like this will terminate any excuses of your speedometer not working for those of you riding with broken dashes (although RPMs and temps are a different story)
Review by jonga10 on Speedometer Speed Box App.