FYI Matt- if you plan on mounting it on the left side of the axle like in my above pics, I'd recommend you get a curved one with the vertical support that is flush with the outer edge of the curved piece and not  welded near the center of the curved piece.  When I had mine on it seems like I thought that if there was less clearance between the inside of the plate mount and the rear pulley that I'd feel a little uncomfortable.    



I checked the link pics and it's a little hard to tell if the pieces are flush but I'm thinking they are.  Even in my pic above it's a little tricky to tell if it's flush or slightly inset cause of the shadows but it is indeed flush.  Ask the buyer if you're not sure.  

Exactly, SA.  A welding buddy of mine in another town said that a handful of people were making those $18-$25 curved mounts initially and he questioned the strength of the welds by the pics he had seen and one he had bought himself.  We did some research and asked around and discovered several instances of those early curved ones breaking at the weld just as he had suspected.  He agrees that they are all made really good now.  That's why clearance was an issue for me when mounting.  I visioned high wind breaking it and pushing it into the pulley ala a blender on puree.

The one that you show, SA, looks very solid.  

Also, don't mount the plate on one side then bend it over the curve and mount the other.  Pre-bend evenly first over the curve or around a one gallon paint can to where the plate holds the curved shape on it's own.  I've heard stories about the mount-bend-mount method putting to much bending pressure on the screw holes of the side mounted first.  Vibration and heating/cooling of the plate eventually causes the plate to crack at those mounting holes. Put something behind the plate, sandwiched between the plate and mount, to dampen vibration if you get any rattles.  

To each his own, but I don't quite understand the idea of the side-mount plate. To me, it looks asymmetrical, and not very good. Besides, if the rear light is mounted there, it becomes less visible from the right side of the bike, and thus perhaps a little more of a safety hazard.

Vision was my concern too, once i mounted it you can see its visible though my rim and its bright as hell. i like the less is better look and until i actually get a ticket for it....its staying right where it is!

nope! that was the easiest and fastest "bolt on" i every did....i need to add spacers to the bolts to even out the back of the light but the bracket was made perfectly and slide right on. i did have to size up the holes for the light to fit the bolts that came with the light.
btw, the bottom of the cross has a clear window to light the plate, two birds with one stone!

I'm working on another project to make things more visible. I've been behind my bike at night, trust me you can see the light just fine from pretty much anywhere. Its pretty freaking bright.