I have the frame stripped and it's ready to go the welder soon. My goal is to stiffen the frame to reduce flex. I will have the welder tig up the seams, but I am also interested in adding stiffeners from the rear spine to the down tubes. Does anyone have pics or dimensions handy or point me in the right direction on where to find this info? The frame will not be detabbed or cut. The bike will be staying essentially stock with a few upgrades like 18" hoops front and rear to utilize better rubber, electronic ignition for reliability, upgraded suspension for better handling and a few other mods to strengthen performance and endurance.