Hello, everyone. Check out
this taillight from Performance. The thing is freakishly bright.
The mount is really for the handlebars(it comes in a white headlight, too, but it's not as blinding); you'll have to rig up a mount. I put mine on the seatstays right below the brakes by rapping up enough rubber for the clamp to hold.
I used to use the 5-led Cateye 600, and there is no comparison. I have had quite a few riders ask me where I got such a bright taillight