Sigma Sport Spokes Magnet for Wired Computers

Unobtrusive, effective I tried these on a set of HED Ardennes which use a relatively small bladed spoke. They attach as well as the screw-in variety by slipping the metal shield over the rubber magnet and pinching the rubber to the spoke. My Garmin speed and cadence sensor didn’t want to pick it up at first, so I flipped it around several times. The rubber part is the magnet and there is no indicated up or down. You’ll just have to play with it until your sensor finds it. It’s a relatively weak magnet, so I had…

I was looking for a wheel magnet for my Sigma bike computer which had a larger magnetic field, i.e., was more powerful, than the the one included with the installation kit. As it turns out, this is no more powerful than the original; it is, however, much smaller and therefore much less of an eyesore. The way it attaches to a spoke is ingenious and it will very definitely stay in place until I choose to remove it. If it had been a little more powerful–which is what I was looking for–I’d give…