cyclometer

[Warren Davies]

I have a sigma speedmaster 7000 model and cannot remeber how to set the
wheel size (lost the leaflet that came with it) I have a choice of 3 wheel
sizes (which I assume if the first number as it goes from 1 to 3) then a
three figure number ( I am using miles rather than km). Would
the 3 figure number be 27.2in or 700cm

 

[Neil Brooks]

"Warren Davies" <[email protected]> wrote:

>I have a sigma speedmaster 7000 model and cannot remeber how to set the
>wheel size (lost the leaflet that came with it) I have a choice of 3 wheel
>sizes (which I assume if the first number as it goes from 1 to 3) then a
>three figure number ( I am using miles rather than km). Would
>the 3 figure number be 27.2in or 700cm

did you look at

http://www.sheldonbrown.com/cyclecomputer_calibration.html

?
--
Live simply so that others may simply live

 

[Warren Davies]

Yes thanks Neil. I could not find my Model there. The problem is the four
figure number and what to enter. The first digit reads 1 -3, and the other 3
read 1- 10. I assumed the first number was there for for different wheels
or km/miles. That leaves me with a 3 figure entry. I remember it being very
simple whe I did it 3 years ago!!
"Neil Brooks" <[email protected]> wrote in message
news:[email protected]...
> "Warren Davies" <[email protected]> wrote:
>
>>I have a sigma speedmaster 7000 model and cannot remeber how to set the
>>wheel size (lost the leaflet that came with it) I have a choice of 3 wheel
>>sizes (which I assume if the first number as it goes from 1 to 3) then a
>>three figure number ( I am using miles rather than km). Would
>>the 3 figure number be 27.2in or 700cm
>
> did you look at
>
> http://www.sheldonbrown.com/cyclecomputer_calibration.html
>
> ?
> --
> Live simply so that others may simply live

 

[Alex Potter]

Warren Davies wrote on Monday 09 January 2006 17:53:

> The problem is the four
> figure number and what to enter. The first digit reads 1 -3, and the
> other 3 read 1- 10

Does "the circumference of the wheel in millimeters" ring any bells?
--
Regards
Alex
The From address above is a spam-trap.
The Reply-To address is valid

 

[Neil Brooks]

Alex Potter <[email protected]> wrote:

>Warren Davies wrote on Monday 09 January 2006 17:53:
>
>> The problem is the four
>> figure number and what to enter. The first digit reads 1 -3, and the
>> other 3 read 1- 10
>
>Does "the circumference of the wheel in millimeters" ring any bells?

Alex is right. It should follow this particular page, +/-

http://www.sheldonbrown.com/cyclecomp_e.html

--
Live simply so that others may simply live

 

[Warren Davies]

I'll give that a try, but why should that first number allow you to enter a
2 and a 3 (penny farthing wheel)
"Neil Brooks" <[email protected]> wrote in message
news:[email protected]...
> Alex Potter <[email protected]> wrote:
>
>>Warren Davies wrote on Monday 09 January 2006 17:53:
>>
>>> The problem is the four
>>> figure number and what to enter. The first digit reads 1 -3, and the
>>> other 3 read 1- 10
>>
>>Does "the circumference of the wheel in millimeters" ring any bells?
>
> Alex is right. It should follow this particular page, +/-
>
> http://www.sheldonbrown.com/cyclecomp_e.html
>
> --
> Live simply so that others may simply live

 

[Dave Larrington]

In article <[email protected]>, Warren Davies
([email protected]) wrote:
> I'll give that a try, but why should that first number allow you to enter a
> 2 and a 3 (penny farthing wheel)

Because the nominal circumference of a 25-622 tyre is well in excess of
two metres. The '3' is unlikely to see much use and a decent-sized
penny-farthing would need a '4'.

Tip for penny riders, divide the circumference of the wheel by 2 and fit
two magnets diametrically opposed.

--
Dave Larrington - <http://www.legslarry.beerdrinkers.co.uk/>
A *National* Socialist Government did you say, Mr. Chaplin?