Thomson trail alloy riser baridentical in alloy and construction to thomsons downhill bar their new trail bar is 750mm wide with 12mm of rise 6 of backsweep and 4 of upsweep the clamping area is 50mm allowing a different bend profile for a more compliant ride the trail bar gives you a light aluminum all around bar for your mountain bike thomson bars are produced by advanced hydraulic press forming to avoid the need for hand grinding almost all other bars are manually bent and bends are gr