Question regarding Spinervals and gearing

[Starfish]

However, read your computer manual. Typically, a cadence kit is set up on the crank and rear chain stay so it is using a magnet attached to the crank -- which is going around when you are on the trainer.

Hi Judy...I have a Specialized computer with the cadence function. It is not wireless for the cadence function, so there is a wire from the computer running along the down tube to the chain stay on the left side of the bike (away from the chainrings). And, there is a magnet attached to the crank arm on that same side...just like SK described above.

Both the wire and the magnet are attached to the bike with zip-ties.

Edited to add: I have liked having the cadence function for awhile...I think it has helped me to recognize by feel what my rpms are, as a newer cyclist. But, I think next time I set up a new bike, I won't bother with cadence, unless it is wireless. I can tell by feel now, and it will be one less bit of wiring hanging off my bike.