You’d need to check the relevant legislation in your country, but I very much doubt it. They should at least be legal in the UK (as lights), under the 2005 amendments to the Road Vehicle Lighting Regulations, although they wouldn’t fulfil the mandatory lighting requirements.
There are valve caps that shine quite the same way while riding. I’m not sure if you know them. I just ordered green ones yesterday.
Oh and here in germany you will get problems riding them on the street. They simply are not allowed - though I don’t get why. Maybe they are just way to cool and will make everyone like “Wow, what the hell is that?!” … while driving into another car …
The spokes also had a plastic decoration cover, that was slightly transparent. But I think having ‘chrome’ spokes would make it shine better.
The rims were just alloy, not anodized, and not really shinny (but still the metal reflected the light).
Per wheel I had 2 AA batteries near the hub, with an easy switch on it.
Now the hard thing was …riding a 7ft unicycle in the dark (is not always fun).
Further you can’t ride this in the rain, or on wet surfaces.
At one point I sold it off, but can’t remember to who.
Anyway; it’s not hard to make this yourself. Just have the right drill piece, and a suitable rim, and solder all the +'s en -'s correct. But next time I would use the heat-shrinking-tubing (in stead of tape) to prevent short circuit with the rim.
From their website, it looks like the CYGLO Night Bright Tyres are just another design concept. It doesn’t look like they have even hacked together a prototype. Just patented an idea. They likely don’t have any design for actually manufacturing them. I think the flopped bike pics are funny though.
Now, with all these drilled double wall rims that are currently popular, you could easily mount some LEDs in the holes… You’d get a similar effect that would last through many tire changes…