Originally Posted by
sdmc530
I can not speak for you specific needs on the bike but when I my current chest strap setup does fail I will not be replacing. I am on my second garmin unit in about 6 years. I find the info helpful but not really necessary. I found it more necessary before I got a power meter but now I use that data for training and such so I will probably ditch the HR.
Ideal to have both. Especially since the chest strap costs so little. You can work out your
current VO2max from your HR
WR ratio, and get some insight into how well you're recovering.