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.

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

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