I have the 2 products mentioned in the topic of this post. I used the garmin for ages, it's fine, works well, speed is accurate. Today I connected my new turbo trainer, the model mentioned in the topic, and connected it to the garmin via ant+. The speed I was shown when I was cycling was over 200km/h, which is obviously incorrect!! How do I calibrate the garmin to have the correct speed for the turbo that is connected to it?
