The fronts are amber, and the rears are red - they're dual faced, but I'll check the the laws to be sure. It's legal for rear facing red signals on certain trucks, but I'm not sure about bikes. Thanks for the tip.

FWIW, I priced them at $36 each delivered. They're made for trucks, which is why they don't cost $136 each, which would be the case if they were made for motorcycles. ;-)