The Trimax is the latest in clip-on designs from Vision. They feature an TriMax adjustable clip on bar with FAST technology. The F.A.S.T (Fully Adjustable Slider Technology) system allows the length of the extensions to be adjusted from 230 to 290mm even with cables and housing installed. Totally adjustable arm rests and quality construction round out the package. Made for modern 31.8mm handlebars.