Putting the Karhu Fast 2 Rides to the speed test

I do love them for the elliptical machine

Today's run (street) 2.5 miles

After writing about my running shoes yesterday, I decided to try another run in the Karhu Fast 2's. I'm planning a full review of these shoes for Runner's Tech Review and didn't feel that I'd spent enough time running in the Karhu's to form a complete opinion. The Fast 2's have served me well as a stable shoe on the elliptical, but that's certainly not what they were designed to do. The name Fast 2 implies that they are, well, fast. I'd never tested them at speed so I had that in mind when I went out early this morning.

Although the shoes, at around 10 ounces, are lightweight, they seem bulky compared with the Kinvaras. It feels like a lot of shoe. When I took off on today's run I was conscious of the thick out-sole and the "fulcrum" technology that supposedly drives the runner forward. I decided to try some quick acceleration to see if the shoe transformed to a quasi-racer when run at higher cadences. That's a trait of the Brooks GTS-10s that run like a luxury sedan until you pour it on and they become more like a sports car. The Fast 2's didn't give me the feeling of speed. In fact, during "speed play", they felt less stable than when I ran at my normal pace.

I maintained a decent pace for 4:00 AM (9:12) and felt the Karhu's didn't hold me back from doing that. I don't know the exact height of the heel and mid-sole but I felt like I was riding a little too high. Since the Kinvaras are my standard platform that's no surprise, but most of my conventional shoes feel more stable than the Karhu's. I'll put a lot more into the review and will also include Adventure Girl's comments as she's  testing a pair as well. It will be interesting to hear her opinion and whether it's the same - or different - than mine.