My name is Todd Anderson and I'm a Rider Experience Rep at Specialized Bicycle Components that introduced the Flux lights this season. I wanted to jump in and reply to this thread about lights and specifically the rattling issue some people have reported with the mount. We spotted this problem in the first production batch. The mount needs a very small amount of play to properly lock and release but we found in production this amount of play had increased to the point that on some lights it could make noise while riding.
If you are experiencing this problem or have any questions related to Specialized Bicycle products please contact your local Specialized dealer or you can contact us directly at [email protected]or by phone @ (877) 808-8154.
Would any Expert owner volunteer to make good wall (ceiling) beamshots?
I got recently a very good match between light distribution from my ceiling beamshots and from goniometer measurements for Philips Saferide 80. More info here. Briefly, photos can be a pretty accurate method, and it's accessible for anyone.
It would be sweet to see a 3D-view colored log comparison SR80 vs. Expert (like this one for SR80).
I can write detailed instructions how to make beamshots (it is not trivial) if there's a volunteer. My requirement is that the raw photos must be publicly available. I can do the rest of the processing if octave/matlab is too difficult.
CPSC says "the firm has received four reports of Flux headlights or taillights overheating and two reports of Stix headlights expanding and bursting. No injuries have been reported."
The taillights will be replaced and the frontlight just receive an firmware update.
See details in my links.
I guess there could be something with the battery.
It might just be a random batch of batteries with some flaws. In a previous job dealing with power systems for satellites, we got a bad batch of cells from our long-time supplier. These were cells that get lots and lots of attention during manufacturing, and we did a lot of testing too. Still, the problem only showed up after the satellite was launched.
So... it's not impossible that Specialized might have gotten a few bad ones too.
Still, I'd love to know if they had a problem with the charging circuit or something like that. Lots of ways for things to go bad, and if you work with electronics long enough, you'll see more of them than you wanted to.