My understanding is that for best results testing with an aerometer, you want a dedicated speed sensor and not speed data calculated by GPS. When running a wheel with a traditional hubs, this is easy enough, e.g. throw a Garmin Speed Sensor 2 or Wahoo RPM on the hub (front or rear, doesn't matter). I suppose you could also go old school and use a chainstay sensor with a magnet screwed onto a spoke.
But if neither of your wheels has a traditional hub shell or spokes (e.g. trispoke front with rear disc), what are people using for dedicated speed sensors? Best solution I can think of would be a thin round neodynium magnet taped to the disc wheel, with an old school chainstay sensor. But is there a better way?
Amateur recreational hobbyist cyclist
https://www.strava.com/athletes/337152
https://vimeo.com/user11846099
But if neither of your wheels has a traditional hub shell or spokes (e.g. trispoke front with rear disc), what are people using for dedicated speed sensors? Best solution I can think of would be a thin round neodynium magnet taped to the disc wheel, with an old school chainstay sensor. But is there a better way?
Amateur recreational hobbyist cyclist
https://www.strava.com/athletes/337152
https://vimeo.com/user11846099