Maybe they were attempting to make the speedo less optimistic.;-)

BenT
sent from my electronic leash

On Oct 15, 2011, at 1:33 PM, mark drillock <mdrillock@cox.net> wrote:

> AFAIK, the 820 is the earliest USA speedo. I think they changed to 805 during 1982 model production. Why, when same tires were used on both? Don't know.
> 
> Mark
> 
> 
> BenT Syncro wrote:
>> I've never seen an 820. Replaced the 1000 on my Syncro Doka to a 1600. That way, I can run tires (tyres to AB) even smaller than your go cart.
>> 
>> sent from my electronic leash
>> 
>> On Oct 15, 2011, at 7:49 AM, Alistair Bell<albell@SHAW.CA>  wrote:
>> 
>>> one question I have had for a while is why do vanagon speedometers have a range of revs/mile numbers on them? I have 2 old ones in my parts bins (mph), one has 820 and one has 805.
>>> 
>>> And of course, syncros are different. MY '86 with a purely kph speedo, has 1000 on it. I guess I should look for go kart tires :)
>>> 
>>> alistair
>>> 
>>> 
>>