Distance on Keiser m3i not transferring to Garmin Fenix 6s Solar properly

I have paired my Garmin Fenix 6s Solar to my Keiser m3i, I think successfully.

I completed a ride, on the Indoor cycle option. The distance did not transfer properly. I rode 22 km, recorded on the keiser, but the Garmin recorded 4.1 km

How do I fix this?

0 PaulDN81 over 3 years ago

I'm assuming it's paring with your Garmin as a speed/cadence sensor since otherwise you probably wouldn't have any distance at all. If that's the case you will need to go into the sensor settings on your watch and change the wheel size. This type of sensor profile is simple and is just counting revolutions and multiplying that by wheel size to calculate distance. Normally it would be automatically calibrated based on outdoor riding but that's not an option for a spin bike so you'll have to do it manually.

This Garmin page explains how to do this. It is in reference to Garmin's speed sensor but it should be the same if your spin bike is being recognized as a speed sensor: support.garmin.com/.../

0 Anita over 3 years ago in reply to PaulDN81

Thanks.

Yes I am using the spd/cad sensor had the correct wheel size inputted. (16” wheel is 406mm)

So I’m not sure why it is misreading…

0 tmk2 over 3 years ago in reply to Anita

That's not how it works for indoor bikes. Since the wheel doesn't cover any real distance, its physical size is irrelevant. Unless the manual provides the proper value for the wheel size configuration, you will have to find it experimentally.

0 Scillonian over 3 years ago in reply to Anita

The last post on the following thread on Reddit suggest 2,200mm as a starting point for 'Wheel Size':

https://www.reddit.com/r/Garmin/comments/lydu32/garmin_fenix_5s_now_working_with_keiser_m3i/

Start with 2,200mm and see what the difference is after a ride (something around 10km). If your f6s is showing less distance Keiser then increase the 'Wheel Size'. If your f6s is showing greater distance than the Keiser then reduce the 'Wheel Size'. (From the distances in your initial post and quoted 'Wheel Size' of 406mm, a quick calculation would suggest a 'Wheel Size' of ~2,180mm.)

Depending on how the Keiser M3I generates the speed data it may not be possible to get them to agree reliably on distance.

0 Anita over 3 years ago in reply to Scillonian

I'll try this and see. Thanks