Originally Posted by

**wiggles**
Every HRM I've used calculates your max/min, so I don't know how he'd be using a formula?? I suppose I should say he should look in to a higher grade HRM, like a polar f11 (if he's not looking for a dedicated cycling model).

"Every HRM I've used calculates your max/min, so I don't know how he'd be using a formula??"

How do think the HRM 'finds' the max - just makes it up? Though that would be just as good, it actually uses a formula that doesn't work. - TF