Does the odometer also over-read?
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I believe one of the septics on the ADV site has investigated the inaccurate speedo and managed to cut the inaccuracy from about 7% to about 2% using a speed drive from an R or RS model.
Seeing as how the drive for the odometer is the same as the speedo,i would say that there is a stong possibiliy that the odometer is out by the same margin.
A GPS unit that shows speed and distance travelled could confirm your suspicions.
Col
Seeing as how the drive for the odometer is the same as the speedo,i would say that there is a stong possibiliy that the odometer is out by the same margin.
A GPS unit that shows speed and distance travelled could confirm your suspicions.
Col
Atkule said:It is well documented that the GS speedo is wildly inaccurate. Does this also mean that the mileometer is over-reading given that they function in different ways?
hmmmmm?
In my experience on a 2002 1150 GS the mileometer seemed to be less "optimistic" when compared against a GPS. My current 2005 1150 GSA speedo is less optimistic and the mileometer also seems to be similarily less afflicted.
That is the question. Yes they are driven by the same thing but they work in different ways so it could be that while the speedo is optimistic the odometer could read correct.
Anyone done the GPS thing? On a long flat road! Hills are a problem, GPS reads your distance across the planet, bike measures wheel rotation. Go up a hill and they will read different
I've seen the maths for hills an IIRC the difference is three fifths of fcuk all for inclines you'd ride a bike up and compare the distance travelled.
ie 100m climb in 1km gives 5m more distance on the "slope". That's half of one percent
250m climb in 1km gives 31 more on the "slope". Thats 3.1 per cent extra
ie 100m climb in 1km gives 5m more distance on the "slope". That's half of one percent
250m climb in 1km gives 31 more on the "slope". Thats 3.1 per cent extra
Dave Barrett
Registered user
I recently rode with an 1100-mounted friend to Belgrade and back. Although we rode together at all times, at the end of each day, he had typically ridden 60-70km more than me according to the 2 odometers.
--Must be the number of wheelies that the 1200 is good at pulling
--Must be the number of wheelies that the 1200 is good at pulling
Mouse
Registered user
A GPS with a good enough signal to provide 3D location will probably give you the true figure anyway. Probably 
Colban said:
I believe the mod you are referring to is the speedo drive from the R1100R or 1150R. The ratio on the GS is 2.6 compared with the 2.9 on the replacement drive (anorak or what!).
Anyway it works! My speedo is accurate according to the sat nave up to 60/70 and then only marginally out.
Strange thing is, I now get less mileage to a tank of fuel
....proving that it does affect the trip/odometer.Mike
delpel
Registered user
My Odo is miles out, well actually Kilometers out 
It has MPH dial around the outside of the clock, Kilometers around the inside as you expect and the odometer reads in Kilometers - go figure
TTFN
Delbert
It has MPH dial around the outside of the clock, Kilometers around the inside as you expect and the odometer reads in Kilometers - go figureTTFN
Delbert
ovenpaa
Registered user
My 1150 odometer is just a couple of percent out according to GPS - Speedo on the other hand is miles out - anything up to 10%
My old 1100 speedo was 7% out on the speedo but only 2% on the odo.
Eastriding2002
Registered user
I've checked my 1200GS speedo when using my Sat Nav and it is never more than a couple of miles per hour out, always over reads slightly. The Odometer is always light compared to the Sat Nav, so this is a good thing for when we come to sell!
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