Andrew Coggan wrote:
Heat-induced drift is an issue for all electromagnetically-braked ergometers. IOW, it isn't just the tire that needs to come up to a stable temperature, but the entire system.
The now-ancient Velodyne had a pre-heating mode (i.e., full current applied for 30 min or longer) to help deal with this, but AFAIK nobody else has ever included such a feature.
Well, heating the part of a trainer (while probably acceptable solution way back then) might not be that bright of idea now. Sticking some kind of a real torque sensor can cure it in a little bit more adequate way.