Re: Speedo accuracy

["Mike Bostock" <mike@xxxxxxxxxxxxxx>]

In your message regarding Re: Speedo accuracy  dated Sun, 21 Jan 2001
14:48:07 -0500, Paul Fox said that ...

>  > Having at last fitted the GPS to my bike(
>  > http://www.unicorn-k9.fsnet.co.uk/gps.html ) I have found that the
>  > speedometer accuracy is bordering on the limit for what is considered
>  > acceptable.  
>  > 
>  > There is a >10% error - the speedo reads high - I was beginning to wonder
>PF-  
>PF-  10% is more than i've usually heard, but i think it's almost universal
>PF-  that vehicle speedos read high -- the makers would rather that than the
>PF-  reverse, where you'd be actually driving faster than you thought you were.

Yes - I appreciate that

>PF-  
>PF-  most people find the difference to be about 5%.  i haven't checked the
>PF-  RS against my gps yet.

5% high I would find acceptable - but >10% ??? - I believe, but am not
sure, that there is UK (or probably EU) legislation that requires speedos
to be better than 10% - my ST speedo would be pushed to pass that standard.

My Citroen Xantia achieves a 4% error whilst SWMBO's Peugeot 205 runs at
about 8% (both high of course).

- -- 
Mike Bostock
http://www.toothfairy.co.uk/
Wales & SW ST Riders
http://www.unicorn-k9.fsnet.co.uk/

'99 Red ST

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