Subject: RE: Kurt Kinetic Power Meter This thing looks like a significant upgrade to the previous regular sensor. It looks like they can now measure instantaneous power (probably by looking at rate of speed deltas along the power curve ), so makes it a lot better for short quick intervals and more accurate for 1s/5s/10s peak power. Definitely more accurate in that when you stop pedaling, power goes to zero (as it should ). Second, I believe this thing has rolldown calibration, meaning you can adjust it based on the tension of the wheel against the roller, which can be a huge variable that will definitely impact your calculated power numbers using a traditional speed->watts calculation. A last point is the bluetooth support, which makes pairing to a bluetooth phone available, which opens up the world of phone apps to be used as a bike computer and data analyzer. I had previously read it would be $299, but $200 seems a lot more realistic and tempting. |