Originally Posted by
dennisa
Were do I mount the magneto pickup on the front fork, inboard closer to the hub, or near the outside diameter of the rim ?? it does state it specifically.
The simplest rule is anywhere that works and is convenient.
Closer to the hub means the magnet passes by the sensor at a lower speed. This can increase reliability.
http://sheldonbrown.com/cyclecomputer-installation.html
The distance between the magnet and the sensor can't be too large.
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Originally Posted by
Trevor98
It really doesn't matter. There is, however, a belief that putting the magnet towards the hub is better because weight at the rim slows acceleration by making more weight's inertia to overcome. In theory that's true but in reality the position of the magnet is irrelevant so put it where it can talk to the sensor.
The amount of weight is so small that it would be pretty-much impossible to measure, let alone feel, the difference.