I've never seen or heard of these before, here is what is on their website,
http://www.superbrace.com/proddetail.asp?prod=2239
Reduces low and high speed wobbles.
Improves stability in tight cornering.
Improves tire life and reduces cupping.
Decreases sensitivity to rough road surfaces and rain grooves.
Each SuperBrace is designed and manufactured for each specific motorcycle.
Every SuperBrace is made of 6061-T6 aircraft aluminum and machined to a tolerance of + or - .002 of an inch, with a polished finish.
Ten minute easy installation.
Competition proven by world class racers.