Tag: Tire Study

For a while now, I’ve wanted to study the aerodynamic performance of tires on the road. We’ve done a bit of work in a wind tunnel, which is great, but it’s not the real world. In order to get the job done, we needed a way to log data on the road. Quite some time…

  I’ve learned a lot since I posted “Studying Tires Part 1, Logging Data.” I mentioned that I believed there was either a shift in the barometric pressure, or that the absence of temperature and humidity were the reason for the shift in my driveway’s elevation. Today I have the results.     A 12-Hour…

  Last week I mentioned I was going to be busy in my garage making a mount for the data logger and sensors. Well, I have been. Here is what I have so far.     The Basic Construction I thought about what to build this with and after looking at aluminum, pvc, plastic, etc.,…

This week we have new parts. I just received a new wind speed sensor. If you are wondering why, I’d guess you are not alone. While a Garmin will give us great data on rider speed, it will not give us any information on relative velocity. For example, if you are riding 20 mph into…

  The wind direction sensor I have been waiting for has finally arrived from Germany. It’s made by a company called Lufft and is accurate to +/- 1 degree. There are a number of wind direction options but most fall into the +/- 5 degree range. Since the yaw angle spread on a bike is…

  Over the last few days, I’ve been able to get out on the road to test the sensors and my carpentry skills. Everything has been going really well. Here is a quick update on what we’ve been doing.       The Voyage The first ride was at a slow-paced eight mile trip. I…

  It’s been a while since I’ve posted about our tire study.  Things have been busy here at FLO.    Our last post discussed our maiden voyage.  Since that time we’ve spent a lot of time riding the sensor around and have started to analyze the results.  While we are not 100% of the way…

  If you read Part 7 last week, you will remember that at the end of the post, I said we were headed back to the drawing board.  Our CdA numbers were not what we expected and I was a bit frustrated.  However, I received an email from one of our past customers, who is…