Reverse transcriptase is the viral enzyme responsible for making a DNA copy of the RNA genome from a retrovirus. As such, it is technically known as an RNA-dependent DNA polymerase. This is opposite to the usual flow of genetic information from DNA to RNA to protein.
This means downhill sections of the ride may be faster, and uphill sections slower. 1  Easy: Under 10 mph. 2  Leisurely: 10-12 mph. 3  Steady: 12-14 mph.  Moderate: 14-16 1  mph. Brisk: 16-18 2  mph. Vigorous: 18- 20 3  mph. Strenuous: 20-22  mph. Super Strenuous: 22+ mph.
That's a 7.3 mile uphill (gradual) ride....the big thing I worry about is wind direction. A biker on a bike that is on flat level ground, no wind, can expend about 1 hp of energy to go 5 miles an hour or so...as you start to get over 10 or 12 mph, though, you have to start dealing with wind resistance.