Norco F-3 speed / distance display

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I will be changing the battery in my Norco F-3 speed and distance trip
meter. This of course will zero the internal calculations for wheel side.
I have LOST the instructions, can anyone help please! Wheel size 26"
(mountain style bike)

Thanks a lot

Robin

In article <wWKcc.40504$Ig.36962@pd7tw2no>,
"Robin S" <reply@to.group.ca> wrote:

> I will be changing the battery in my Norco F-3 speed and distance trip
> meter. This of course will zero the internal calculations for wheel side.
> I have LOST the instructions, can anyone help please! Wheel size 26"
> (mountain style bike)

Do you not remember how to set the clock, or just can't remember the
correct wheel size?

Computers typically take a wheel circumference number. My Cateye uses
one in millimeters (4-digit number), some use centimetres.

Cateye's chart of nominal wheel sizes and circumference numbers:

http://www.cateye.com/manuals/tech_calibrate.htm

You're around 2055 mm circumference, depending on the tire size.
--
Ryan Cousineau, rcousine@sfu.ca http://www.sfu.ca/~rcousine/wiredcola/
President, Fabrizio Mazzoleni Fan Club

Thanks Ryan

I think I have figured it out, it comes up with a default 2124 number which
is adjustable, that must be the mm input.

Robin


"Ryan Cousineau" <rcousine@sfu.ca> wrote in message
news:rcousine-EF9402.22554806042004@morgoth.sfu.ca...
> In article <wWKcc.40504$Ig.36962@pd7tw2no>,
> "Robin S" <reply@to.group.ca> wrote:
>
> > I will be changing the battery in my Norco F-3 speed and distance trip
> > meter. This of course will zero the internal calculations for wheel
side.
> > I have LOST the instructions, can anyone help please! Wheel size 26"
> > (mountain style bike)
>
> Do you not remember how to set the clock, or just can't remember the
> correct wheel size?
>
> Computers typically take a wheel circumference number. My Cateye uses
> one in millimeters (4-digit number), some use centimetres.
>
> Cateye's chart of nominal wheel sizes and circumference numbers:
>
> http://www.cateye.com/manuals/tech_calibrate.htm
>
> You're around 2055 mm circumference, depending on the tire size.
> --
> Ryan Cousineau, rcousine@sfu.ca http://www.sfu.ca/~rcousine/wiredcola/
> President, Fabrizio Mazzoleni Fan Club

In article <hA%cc.47047$Ig.5621@pd7tw2no>,
"Robin S" <reply@to.group.ca> wrote:

> "Ryan Cousineau" <rcousine@sfu.ca> wrote in message

> > "Robin S" <reply@to.group.ca> wrote:
> >
> > > I will be changing the battery in my Norco F-3 speed and distance trip
> > > meter. This of course will zero the internal calculations for wheel
> side.

> > Computers typically take a wheel circumference number. My Cateye uses
> > one in millimeters (4-digit number), some use centimetres.
> >
> > Cateye's chart of nominal wheel sizes and circumference numbers:
> > http://www.cateye.com/manuals/tech_calibrate.htm
> > You're around 2055 mm circumference, depending on the tire size.

> I think I have figured it out, it comes up with a default 2124 number which
> is adjustable, that must be the mm input.

Yes. For the most accurate possible circumference measurement, the
traditional trick is to put a small dab of paint on the road, ride
through it, and then measure the distance between the first and second
paint dabs.

Simply running a string around the bike wheel isn't quite as accurate,
because the tire distorts at the contact patch, and the effective
circumference is defined by that "loaded circle," or to put it another
way, with the rider's weight on the bike, the effective radius is the
distance from the axle to the ground.

Making it too complicated,
--
Ryan Cousineau, rcousine@sfu.ca http://www.sfu.ca/~rcousine/wiredcola/
President, Fabrizio Mazzoleni Fan Club

Ryan Cousineau wrote:

> Yes. For the most accurate possible circumference measurement, the
> traditional trick is to put a small dab of paint on the road, ride
> through it, and then measure the distance between the first and second
> paint dabs.
>
> Simply running a string around the bike wheel isn't quite as accurate,
> because the tire distorts at the contact patch, and the effective
> circumference is defined by that "loaded circle," or to put it another
> way, with the rider's weight on the bike, the effective radius is the
> distance from the axle to the ground.
>
> Making it too complicated,

I did something similar, but measured three revolutions instead of just
one for even better accuracy. Then, of course, I found out that my
computer takes circumference in centimeters for calibration. Sigh.

--
Benjamin Lewis

Reader, suppose you were an idiot. And suppose you were a member of
Congress. But I repeat myself. -- Mark Twain