Did offline workout (1.25 hours), synced workout with trainer road website, and the data is still transferring about 5 hours later. Currently, 1.73 GB have been transferred. This seems a bit much.
Also, I notice that trainer road sucks up a fair amount of internet bandwidth on a DSL connection. Enough that it makes it unusable for anyone else in the household.
Current internet usage is untenable with a working household.
Part 2 Saga : Closed Trainer road app on mac, reopened Trainer road, resync’d ride and it was done in a few minutes (transferred 22.3 MB). Seems like a bug in the software. Used the activity monitor on a mac to look at internet usage Trainerroad helper was the culprit.