Thanks for posting this and including us!
A few things:
It's MotoOverland not Motor (aka MOD)
The thickness of ours is 4mm...it's posted on our site
The price has indeed gone up to $274.99...Canadian $$ though (the site needs updating!)
With that we have also now added rubber damping to the CNC'd alu front bracket and two small vent slots strategically placed on the bottom. Neither are shown in the pic below. We added rubber damping to the bracket to complete the whole system being rubber damped, without compromising the strength. It helps to both damp vibration/resonance and disperse impacts.
Ours is also TIG welded inside and out. Also all the bits are CNC'd (including the 360* support countersunk mounts underneath) and the bracket is also very short for more strength. The devil's in the details!
It's also compatible with about every engine bar (Adv-Spec, Alt-Rider, BMW, Givi, Hepco+Becker, Holan & Holan Pro, Metal Mule, Wild @ Heart and Wunderlich Basic), except Wunderlich's Adventure engine bars for which we make a special order version.
Thanks very much!!