I've got an '08 Madone 5.5. Pro. The fork has a rather thin leading edge on it which does not allow for much adjustment of the speed sensor for my Polar 720. The speed sensor is shaped to fit on a round fork so it isn't very adjustable on the madone fork:
Has anyone come up with a fix here? It is possible to use a rare- earth metal magnet or something on the spokes to increase the "reach" of the signal? Right now the sensor is about 1cm from the magnet. It's ~2mm on my other bikes.
I've got an '08 Madone 5.5. Pro. The fork has a rather thin leading edge on it which does not allow for much adjustment of the speed sensor for my Polar 720. The speed sensor is shaped to fit on a round fork so it isn't very adjustable on the madone fork:
Has anyone come up with a fix here? It is possible to use a rare- earth metal magnet or something on the spokes to increase the "reach" of the signal? Right now the sensor is about 1cm from the magnet. It's ~2mm on my other bikes.
I do not know how sharp the leading edge of your fork is but my Specialized and my Aeirus forks are not round. I get the sensor plenty close to the magnet. Within a few mms. Both measure about 1.75" and 1" thick where the sensor is mounted. They both have a taper on the leading edge. No knige edge as that would be dangerous but sort of egg shaped.
You might want to ask your LBS if the newer Polar CS-series transmitters work on the same frequency. Those come with two separate fork mounts: one for rounded, and another for sharp-edged fork blades.
On Feb 15, 6:29 pm, Andrew F Martin <[email hidden]>
Quoted message said:
Has anyone come up with a fix here? It is possible to use a rare- earth metal magnet or something on the spokes to increase the "reach" of the signal? Right now the sensor is about 1cm from the magnet. It's ~2mm on my other bikes.
Assuming it's a magnet distance to sensor issue you can homebrew a mag holder, epoxy a magnet to a spoke, or if you prefer a commercial solution you could try one of the Sigma "power magnets".
On Feb 15, 6:29 pm, Andrew F Martin <[email hidden]>
Quoted message said:
Has anyone come up with a fix here? It is possible to use a rare- earth metal magnet or something on the spokes to increase the "reach" of the signal? Right now the sensor is about 1cm from the magnet. It's ~2mm on my other bikes.
Assuming it's a magnet distance to sensor issue you can homebrew a mag holder, epoxy a magnet to a spoke, or if you prefer a commercial solution you could try one of the Sigma "power magnets".
