Bicycle Training .Co.Uk – Free By : rich 29 August 2002 0 Uncategorized Bicycle Training .Co.Uk - Free Training Plans On-Line. Here is a good explanation of heart rate zones plus references to figure outmore about determining what they are. I'm going to try using this for my own training program Share this:TweetPrintPocketEmailLike this:Like Loading... Related Post navigation Previous Previous post:Next Next post: