Recent content by Ron3KL

That's partly why I did the runs each way, to compensate for those factors. For these purposes I don't need to be super accurate - a 6% error is big enough to be quite noticeable. Around the 'burbs sitting on whatever the current speed limit is in the SP23 attracts a tailgater almost...

Good point. What with watching the speedo, the traffic, the signs and starting and stopping the stopwatch I didn't note the odometer... Next time.

Us too... My wife has an SP23 that also seems very s l o w. After reading lodi228's post, I took it out on to a nearby section of freeway that has 5km marked section for checking speedometers. Travelling at a constant speed and using a stop watch I checked the accuracy of the speedo over...