Loads of control on downhills with the Reverse Base 31.8 mm / 790 mm /35 mm handlebars. With a sweep of only 7° as opposed to the more common 6°, the arms are stretched out a bit more for added control on downhills. Plus, this will help you save energy. The bar is made of strong, yet lightweight aluminium and is thus quite versatile. The Base 31.8 mm / 790 mm /35 mm is an excellent addition to any mountain bike.