#11
|
|||
|
|||
Fastest bike?
On 05/07/18 10:40, jbeattie wrote:
On Wednesday, July 4, 2018 at 3:32:42 PM UTC-7, James wrote: On 05/07/18 02:48, jbeattie wrote: You can buy Stages two-sided, if you're into accuracy, which may be an issue if you're switching between bikes or really concerned about accurate calorie burn numbers-- or are in some sort of competition with other riders (who may or may not be posting accurate power data). Otherwise, I think consistency is more important than accuracy. Spikes can be filtered with data ceilings, etc., but the spike my son had -- which was actually 1,732 watts is within the one second power output of Chris Hoy. It was recorded by having the right crank forward on a bumpy descent and not by massive quads, but the meter is just recording numbers accurately. It's not going to filter that out. Maybe he is Chris Hoy! You can download the data and apply filters later. Is the crank position (cadence) sensor on the left crank and left chain stay? I wonder if the unit "thought" the cranks were rotating because the rotation sensor recorded some jitter at the same time the load cell did? To eliminate this by design, a better crank position sensor would help. An encoder ring on the crank and sensor on the BB, for example. Then you don't need to try to "fix" the data afterwards, which I always see as a giant fudge for poor engineering design. -- JS No sensors. It's bluetooth and ant+ connectivity. https://stagescycling.com/us/technology/ Rotational power is determined from Torque and rotational speed. The stages device may use an accelerometer _sensor_ to sense gravity, and uses that to determine the crank rotational speed. The bumpy road likely confused the rotational speed sensing logic. Again, a better engineered crank position sensor would fix that. -- JS |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
fastest bike for 7 mile commute | stupot | UK | 20 | July 25th 05 04:55 PM |
The fastest stock bike in the world. Get yours now!!! | Johnny NoCom | Recumbent Biking | 90 | December 17th 04 06:38 AM |
The fastest stock bike in the world. Get yours now!!! | Johnny NoCom | General | 50 | December 17th 04 06:38 AM |
The fastest stock bike in the world. Get yours now!!! | Johnny NoCom | Racing | 46 | December 17th 04 06:38 AM |
The fastest stock bike in the world. Get yours now!!! | Dave Larrington | Social Issues | 0 | December 15th 04 03:03 PM |