Cadence Sensor

If you don't want to know, then you don't need it.

Generally, a cyclist is most effective in certain cadence ranges. A cadence sensor might help you keep within the desired cadence range.

Thank you but it doesn't really answer the question, how is a cyclist most effective between a range , what is the range.

How do you work out what the range is?

This is an individual matter. I think that generally most cyclists are most effective between 90-110 rpm. Pro cyclists usually ride at higher cadence than recreational cyclists. Finding your optimal cadence is not necessarily trivial, and might require multiple rides with a power meter and/or a professional coach supervision.

If you're not a pro cyclist and do not want to compete on a high level, then I'd stick around 90 rpm.

Thank you very much, as you have guessed i am not a professional cyclist.

I will stick to approx 90.

Thank you for your help.

I have numerous other questions and i am awaiting a call back from the Garmin help desk.

All i want to do is download a map and follow it , the download was OK but after that  UGH

eg

Garmin keeps stopping

takes a long time to connect to PC (Windows10)

Syncing takes for ever then it disconnects me

I have discovered that if I disable the automatic downloads and disable the WiFi capability, the machine seems to work better.

It is a very hard bit of kit to set up but I will persevere.

Many thanks for your advice.