I also can make them from 3/4" thick tubular steel. I have an 87 250SX to test if it on.
I designed mine to bolt to the the rear grab bar so no holes get drilled into the fenders.
Any size/width can be made. It can be made in a 1 piece unit or so that it bolts together to the grab bar and sides of the machine. I set mine up to run a PRM grab bar but anything can be configured.... Mount it to anything you wish!
I'll try to dig up a pic of my rack, but right after I built the motor with 700$ worth of performance products, I put it away. Sure it gets to 50MPH faster but then top speed is ALWAYS limited to about 50MPH. They are a very fun trike and next on my list was a modded manual clutch.
EDIT - It is/was never my intention of "stealing" work from someone else, I had not read the whole post.... I merely prefer tubular DOM tubing over flat stock and angle iron. Then you have to paint it all up and I recommend Rustoleum right from the can and applied with a brush. It lasts YEARS!! and the rack won't fit within my PC oven... 
Sorry SILVERADO!!
Good luck!!
Last edited by Dirtcrasher; 05-31-2010 at 05:31 PM.
Reason: SP!!!! and Unintentionall stealing of work....
All our government does is distract us while they steal from us, misspend our tax $ and ruin our country