Bosch intuvia inaccurate speedometer

[Gubbins]

It looks like the speed registered is higher than actual.
I have 2 bikes both with intuvia displays.
On bike one the speed registered is identical to a garmin 510 but on bike two the speed registered is 1.5 mph faster on the intuvia when compared to the garmin... meaning I sm travelling slower..
Is there any means of adjusting this as it means the cut off is cutting off early.
Thanks in advance....

 

[soundwave]

i can change the wheel size on mine tho not sure that would do that much but worth a try.

or get a dongle lol

 

[Gubbins]

Just change the wheel size.

It's all there in the owners manual.

Now there is a novel idea... a man reading the instructions... that will be that great big thick bag of books that came with it...
Nearly as thick as me...
Thanks

 

[EddiePJ]

I went to edit the post not knowing that it had already been answered, the computer froze and deleted my post!

Looks like I need to use the manual as well.

 

[anotherkiwi]

You got the required manual of course, can't be an EN 15194 approved bike without one, and "the manual is online" is still not legal...

6 Instruction for use

In addition to the instructions required by the bicycles standard EN 14764, each EPAC shall be provided with a set of instructions containing information on:
1) concept and description of electric assistance;
2) recommendation for washing;
3) control and tell tales;
4) specific EPAC recommendations for use;
5) specific EPAC warnings;
6) recommendations about battery charging and charger use as well as the importance of following the instruction contained on the label of the battery charger.

 

[Gubbins]

Just been through the disc and cant find any reference to setting or changing the wheel size or correcting the speedo...

 

[soundwave]

if the settings are not there then will have to get the lbs to do it with the bosch software.

its on mine but i think the latest updates since i got my bike have removed them from the display.

 

[Gubbins]

OK found it.
Mine is set at 2300 but actual measurement is 2330, but whether 3cms will make any difference I dont know.
Going out shortly and will use the trial and error method...

 

[soundwave]

you might even get a bit more mph than ur after just try it and see

 

[Gubbins]

Had an interesting time messing with this..
By making the wheel smaller or larger all it did was make the trip gain or loose a couple of tenths per mile.
The displayed speed did change up and down but the cut off moved up or down with it so put it back where it was. Speed is still on the happy side...
It works different on the classic bike.
The 15.5 to 16 cut-off moves up in sport and up again to 17 and a bit in turbo which is probably why it feels like a faster bike.
Also found the gear change advisor....