The top and bottom bars are 1.5" x .25" DOM tubing. The top bar is about 36" long, the bottom bar is about 24" long. The square tubing I used on the top bar is 2"x2" 1/4". It is about 12" long with 6" of overlap on the DOM. There are two 7/16" "8" bolts holding it onto the DOM so it is removable. I used this approach so I could easly lengthen the top tube if I decide to move the rear axle back.

Owner caption February 2005 · Photo 147 of 328