Polar cadence magnets

I slid my magnet upwards a bit so it doesn't protrude at a 90 degree angle. Maybe 20degrees. This
gets it further from the chain and I can still adjust the sensor so that it comes close enough.

On the funny side. The magnet seems to make a sound every time it passes the chain. Has anybody else
heard this? It doesn't touch, just close enough to kind of make a noise more like a very subtle
static electricity shock.

--
Perre

You have to be smarter than a robot to reply. "WooGoogle" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

What's the best way to get the Polar cadence sensor to work with any kind of magnet? It seems
like they never tested this in the real world cause the magnet is so close to the chain when
the crankarm is near the chainstays it can hit and either move the cadence magnet or dislodge
the chain.

I have a better solution. I use the radio shack rare earth magnet. 2 for $1.79. Each one is about
1/8 in diameter. Very small & very strong. I superglue it to the inside of the crank. It hold up to
all kinds of weather. I've had my one for over a year. Plus with being so strong the signal pickup
isn't so finicky.

Barbara L "WooGoogle" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

What's the best way to get the Polar cadence sensor to work with any kind of magnet? It seems
like they never tested this in the real world cause the magnet is so close to the chain when
the crankarm is near the chainstays it can hit and either move the cadence magnet or dislodge
the chain.

WooGoogle said:

What's the best way to get the Polar cadence sensor to work with any kind of magnet? It seems
like they never tested this in the real world cause the magnet is so close to the chain when
the crankarm is near the chainstays it can hit and either move the cadence magnet or dislodge
the chain.

What side of the bike are you using the sensor and magnet?

I use the Sigma system with the magnet strapped on the the *left* crank and the sensor fastened to
the left chainstay. No problems whatsoever. Must the Polar system be mounted on the chain side?
Sounds like an accident waiting to happen, with all that chain flying around . . .

/Robert

Robert Brown said:

WooGoogle said:

What's the best way to get the Polar cadence sensor to work with any kind of magnet? It seems
like they never tested this in the real world cause the magnet is so close to the chain when
the crankarm is near the chainstays it can hit and either move the cadence magnet or dislodge
the chain.

What side of the bike are you using the sensor and magnet?

I use the Sigma system with the magnet strapped on the the *left* crank and the sensor fastened to
the left chainstay. No problems whatsoever. Must the Polar system be mounted on the chain side?
Sounds like an accident waiting to happen, with all that chain flying around . . .

/Robert

You can of course mount the Polar cadence sensor wherever it suits you the best. Since I happened to
have my speedsensor on the right side and my watch also it was kind of logical to mount the cadense
sensor on the same side. It may and it may not work with the transmission from left to right.

I actually feel that the cadense sensor is a little more protected on the right side just in front
of the rings. At least I'm not so suceptible to kicking it when mounting etc. As for the magnet I
solved that by twisting it upwards so that it doesn't really come close to the chain at all.

--
Perre

You have to be smarter than a robot to reply.

Quoted message said:

WooGoogle said:

What's the best way to get the Polar cadence sensor to work with any kind of magnet? It seems
like they never tested this in the real world cause the magnet is so close to the chain when the
crankarm is near the chainstays it can hit and either move the cadence magnet or dislodge the
chain.

What side of the bike are you using the sensor and magnet?

I use the Sigma system with the magnet strapped on the the *left* crank and the sensor fastened to
the left chainstay. No problems whatsoever. Must the Polar system be mounted on the chain side?

No, I mounted mine on the non drive side. No problems.

Lou

"Per Elmsäter" wrote:

---8<--cut

Quoted message said:

I actually feel that the cadense sensor is a little more protected on the right side just in front
of the rings. At least I'm not so suceptible to kicking it when mounting etc. As for the magnet I
solved that by twisting it upwards so that it doesn't really come close to the chain at all.

OK, nu fattar jag - det låter som om du har sensorn på det diagonalröret? I mitt fall så har jag min
på kedjestaget . . . /Robert

Thanks to all for the suggestions. Put on nondrive side now. I had the Polar power dealie before and
just kept the magnet on the drive side for foolish consistency... Doh.

How about you put the sensor and magent on the NON CHAINRING bearing crank of your bike.
Works for me.

Cheers Paul

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

Quoted message said:

I slid my magnet upwards a bit so it doesn't protrude at a 90 degree

angle.

Quoted message said:

Maybe 20degrees. This gets it further from the chain and I can still

adjust

Quoted message said:

the sensor so that it comes close enough.

On the funny side. The magnet seems to make a sound every time it passes

the

Quoted message said:

chain. Has anybody else heard this? It doesn't touch, just close enough to kind of make a noise
more like a very subtle static electricity shock.

--
Perre

You have to be smarter than a robot to reply. "WooGoogle" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

What's the best way to get the Polar cadence sensor to work with any kind of magnet? It seems
like they never tested this in the real world cause the magnet is so close to the chain when the
crankarm is near the chainstays it can hit and either move the cadence magnet or dislodge the
chain.

WooGoogle said:

Thanks to all for the suggestions. Put on nondrive side now. I had the Polar power dealie before
and just kept the magnet on the drive side for foolish consistency... Doh.

What happened to the power sensors? Why did you dismount them?

--
Perre

You have to be smarter than a robot to reply.

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

Quoted message said:

I have a better solution. I use the radio shack rare earth magnet. 2 for $1.79. Each one is about
1/8 in diameter. Very small & very strong. I superglue it to the inside of the crank. It hold up
to all kinds of

weather.

Quoted message said:

I've had my one for over a year. Plus with being so strong the signal

pickup

Quoted message said:

isn't so finicky.

Have you tried it for the speed sensor as well? I get constant jumps in speed for one sample and I
always have to fix them with the software error correction. It is a pain the butt and it also means
that average speed and trip distance is off until I fix the errors.

TIA

Quoted message said:

Barbara L "WooGoogle" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

What's the best way to get the Polar cadence sensor to work with any kind of magnet? It seems
like they never tested this in the real world cause the magnet is so close to the chain when the
crankarm is near the chainstays it can hit and either move the cadence magnet or dislodge the
chain.