Joined: Dec 2004
Posts: 12,551
Likes: 798
From: Middle of da Mitten
Bikes: Trek 7500, RANS V-Rex, Optima Baron, Velokraft NoCom, M-5 Carbon Highracer, Catrike Speed
At this time of year, I don't have the legs to push my HR up above about 145. Just about the time I am starting to breathe deeply, my legs burn out and I have to back off. Later in the year, the situation will reverse and I'll be able to max out my HR and still have legs left.