Fri, 13 Feb 1998 19:03:00 -0000
- Message No. 2162
From: VIPER-1@universal.nl (Fels R. Th.B.)
Subject: AW: digital & analog speedo official measurements
Hello everybody,
>>
Speedo analog almost 70 [km/h]
Tripmaster digital 62 at the time of the flashlight when they took
the measurement
Measurements of the Police 60
(btw they billed me for 55km/h in a city in Switzerland -> 40sFr=50DM)
So the digital tripmaster is very good, at least around 0-60km/h
>>
My experiences with the tripmaster are following.
The analog speedometer gives on my bike a topspeed of a little more than 200.
The tripmaster at that moment shows a speed of about 187.
The GPS at that moment shows a speed of 185.
I believe my GPS to be the most accurate device. In that case the tripmaster is also verry accurate and the old fashioned clock is must have been in a happy mood at that time.
But the accuracy of the tripmaster (and analog speedometer) depends on the tyres of the bike. It is sure that with more worn tires the tripmaster also becomes less accurate.
At a speed of 120 on the tripmaster, the analog speedometer shows a speed of 128. The GPS shows a speed which is about 1 Km/h different from the tripmaster.
Speeds up to about 120 Km/h on the GPS show on the tripmastera speed that almost always is

dipper@normans.isd.uni-stuttgart.de