These are the thomson carbon cross country 318mm flat handlebars this bar is 750mm wide and offers 12mm 12 inch of rise together with a 6 degrees backsweep and 4 degrees upsweep built for strength with enough flex built in for all day comfort strong enough for all mountainfreeride light enough for racing bars are made with three different fiber types with different tensile strength and tensile modulus including high strength carbon fibers this helps to allocate stiffness and flex wh