Insta360 - X3

That is a wild way to view what everyone in the comments has said. You're not going to have a camera with any kind of image stabilization. You asked to be able to read license plates, and I can't even do that with an insta 360 x3. You're not going to get what you want out of $54, or around 100 bucks, and blaming everyone else for that fact is wild. Ntm. What is your presumably front facing helmet cam going to do when you're hit from behind?

Most practical? Insta360 X3/X4. Records in multiple directions and mounts to the bike so it can stay charged for 24/7 recording. This is the simplest way to get dashcam functionality on your bike. If you want cool POV social media footage then an action cam from Insta360 or DJI, GoPro isn’t competitive these days. If you’re on a budget and don’t care about audio quality, the AKASO Brave is a good way to get started and see if you want to go further in. With these helmet cams though you will need to be more deliberate when recording footage as the batteries last around 1-2 hours