Well, Sunday didn't work out because I had a mechanical failure. I didn't ride yesterday so the plan was to go out today and duplicate the ride. Unfortunately, I had a flat during this ride. I was able to stop and restart my time reasonably accurately. Also, my Velo counted both mileage and time correctly. Because of the puncture, I did not feel comfortable completing the entire 37 mile route, so I shortened it to 23 miles. Not exactly apples to apples, but it was, more or less, the same route, only cut short.

Even so, I was only able to maintain an 18.8mph average on the ride. It did include my big climb (that's a hill that averages 4* with small sections up to 6*) that's just over a 1/4mile long, which I often do mashing out of the saddle. The rest of the route is much more gently rolling hills or flat, so it could be argued that my average pace could have been slightly higher if I had done the full route and had more time at that higher average pace.

Having said all that, the one thing I can't get past though, is that I still felt like it was much more effort to maintain this pace than it is on the P2. This is just a WAG but I probably spent 20-30% of my time in zone 4 for this ride, as compared to maybe only 10% in zone 4 on the P2. And I feel every bit as exhausted after just 23 miles today a I do on the full 37 mile route when riding the P2.

So where is this extra 1mph? I mean the Shiv still feels fast. And it's definitely faster than my old Cheetah or any of my road bikes. But the P2 is a different animal all together.