The weld on kit is relatively easy to install by only requiring 2 small welds, one on each side of the frame bracket about 1/2" long. This kit is specific to each bike with consideration for which combination of bars and triple clamps are being used. The frame bracket is a universal, weldable tower, that can be adjusted to accomodate different height applications and frame shapes. Because the weld-on tower doesn't have to mount around the head tube, it is very narrow and compact, lending itself quite nicely to applications where space between the gas tank and head tube is narrow. Weld-on towers are normally a stronger option and removal of a weld on tower is quite simple. Each kit includes a Stabilizer, handlebar bracket, weld-on tower, instruction manual and applicable hardware. (The weld-on kit is not for Aluminum Frames. See Bolt-on Kits).
The Photo attached here may be a generic photo to show you the basic components in the kit, but may not be showing the exact kit for your specific bike.