There are so many data sources to be aware of nowadays. EDRs, phones, cameras, infotainment systems, ECUs, dataloggers, etc. It’s tough to keep up.

For instance, scene photos on a recent case depicted an unfamiliar device mounted to the handlebars of an involved Harley-Davidson. The photos were taken at night and from afar, but with a little help from Google’s image search we were able to determine the device was a Dynojet Power Vision. If you’ve never seen one, it looks like this:

 
 

With 2 GB of storage and real-time datalogging, the Power Vision has the potential to provide a plethora of invaluable data. This week, I rented a Harley and bought a Power Vision to figure out exactly how the device works and what data it might provide. In the process, I tested out Harley’s 6.5” GTS touchscreen Boom! Box and their app. More on that later.

2022 Harley-Davidson Road Glide instrumented for testing.

Good news, bad news. Good news: the Power Vision can capture a TON of data including wheel speed, engine speed, gear position, throttle position, and lots of engine-specific channels. Moreover, the data is captured at 5 to 6 Hz with the acquisition time reported in milliseconds. If you get the data, it will reveal the truth. Bad news: the rider has to press Datalog before the ride. As such, it’s a long shot, but worth the attention!

I’ll be presenting results from this testing, and detailing many other alternative motorcycle data sources to be aware of, this month at the NAPARS 2025 Symposium on EDR Research and Training. I hope to see some of you there.

Thanks for reading, keep exploring!


Lou Peck
​Lightpoint | Axiom

P.S. Every time I write a report.