On a recent 40 mile reasonably flat MTB ride, I attached my HR computer off my road bike and monitored what was going on. On strenuous fast parts of the ride I seem to balance out at about 140 to 150 bpm, so what I considered a good work rate. Felt fine. Today I went out on the road bike. Wind in my face, did a quick 25 miles including some average climbs, nothing big. I was moving with a heat rate of 190 to 200 bpm !! I felt fine, but knew I was working at it. Got home and was rung through in sweat, got changed, cleaned the bike all fine. Having only had the road bike since september and using it to avoid mud, my first rides out used to make me feel rough afterwards and I would need a recovery fluid intake to get back to normal. I dont need this now as feel fine. My main worry is heart rates. Is this normal ranges? Looking at the 220 BPM minus my age of 42, I am well over it. I am a strong cyclist and I am trying to get trained up for Lands End to JOG in 2014, so using this as a focus. Any thoughts on my heart rate, as death is something I wish to keep at bay for a while longer. Any help is good, cheers