The route I took this past Sunday is one of our most varied. We had one hill that was short (less than 0.2 mile) but had an 8.5% grade! Because it follows a one-lane bridge full of HUGE potholes, you have to basically start it from standing still, too.

Then we had what we call our 'killer' hill because there is no decent leading up to it (unusual around here). It's a 6.5% climb for about 0.6-0.7 mile.

The last memorable hill of the route is the longest one. It's only about a 2% grade, but it's for almost 4 miles with no shade (no biggie this time of year...but it bites in the summer!).

Oh, and I agree with the others...4.7 mph is better than walking!!