The 5in x 9in Asymmetric T-Bar allows a full 5in for mounting possibilities. At 7/8in wide, most any accessory that fits handlebars will fit the T-Bar. 9in tall means that you have plenty of space to adjust and adapt your accessories to be as close or as far as you want them to be. The asymmetry allows greater creativity to take place, to the left and to the right.