Odometer on bikes?

Quoted message said:

Are these standard or accessories that you buy? How does
it work?

Thanks.

I doubt you can get an odometer-only these days, but I
remember my dad having a mechanical one back in the early
80's that mounted down next to the front skewer.

Today, you're looking at a bike computer, which will have an
odometer and a bunch of other things (average speed,
stopwatch, maximum speed, and other features). They work by
having a sensor mounted on the fork and a little magnet on a
spoke that the sensor "sees" every time the wheel goes
around. The computer will have a calibration setting to so
it knows your correct wheel circumfrence (taking wheel and
tire size into account and using good ol' Pi*R^2).

That's pretty much it. Every bike computer I've used has a
total distance and a trip distance that you can reset.

Matt

"MattB" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Quoted message said:

Are these standard or accessories that you buy? How does
it work?

Thanks.

I doubt you can get an odometer-only these days, but I
remember my dad having a mechanical one back in the early
80's that mounted down next to

the

Quoted message said:

front skewer.

Today, you're looking at a bike computer, which will have
an odometer and

a

Quoted message said:

bunch of other things (average speed, stopwatch, maximum
speed, and other features). They work by having a sensor
mounted on the fork and a little magnet on a spoke that
the sensor "sees" every time the wheel goes around. The
computer will have a calibration setting to so it knows
your correct wheel circumfrence (taking wheel and tire
size into account and using good ol' Pi*R^2).

That's pretty much it. Every bike computer I've used has a
total distance and a trip distance that you can reset.

I use a computer strictly as an o-duh-meter, for PM
purposes.

Stephen Baker said:

MattB says:

Quoted message said:

The computer will have a calibration setting to so it
knows your correct wheel circumfrence (taking wheel and
tire size into account and using good ol' Pi*R^2).

Dang! Things musta changed since my day. We were always
taught that circumference = 2*pi*R.. ;-)

Steve

You'll have to excuse Matt; my son, who is nearly Matt's
age, is still getting area and perimeter confused 🙂

--
Craig Brossman, Durango Colorado (remove ".nospam" to reply)

MattB <[email hidden]> wrote: [snip]

Quoted message said:

The computer will have a calibration setting to so it
knows your correct wheel circumfrence (taking wheel and
tire size into account and using good ol' Pi*R^2).

Wow! Mine must have ben lacking slightly since they
only were interested in the circumference of the
wheel and knew nothing of the area of a circle! 😉
--
Tim. /\ /\ O___O
=\__|__/= meow.
U

Tim Izod said:

MattB <[email hidden]> wrote: [snip]

Quoted message said:

The computer will have a calibration setting to so it
knows your correct wheel circumfrence (taking wheel and
tire size into account and using good ol' Pi*R^2).

Wow! Mine must have ben lacking slightly since they only
were interested in the circumference of the wheel and knew
nothing of the area of a circle! 😉

D'oh!

OK, OK, I got my old geometry formulas screwed up. Good
thing I'm not in the business of building things! I
stand corrected. I'll balame my boy. He was getting a
new tooth (or something else that made him cry instead
of sleep) Sunday night and he keps us up. Yeah, that it!
The boy's fault!

Matt