Originally Posted by
JustinNY
To be honest, I thought buying a garmin 500 would make my riding experience much more awesome. Its been kind of a let down considering the cost. The best thing about it is the fact that its completely stand alone and wireless.
I have a 910 xt, and since I'm training by HR, it's been a very helpful tool, particularly seeing my speed/HR correlations so come race day (I'm doing a half ironman so it's a solo nondraft time trial bike leg of 56 miles), I know roughly where I should be on flat terrain. It's also very good to see whether I might be slacking off or going too hard. I trained for 18 hours this week, and my fatigue is definitely being reflected in my declining bike speeds - will be on a pullback week next week fortunately.
If I weren't training for an event on a plan based on HR (or power), I'd be a lot more underwhelmed with the Garmin.