Handlebars 1" To 7/8" Taper - These aluminium handlebars are 1" at clamp area and taper own to 7/8" at control area, where you fit your levers and bar grips etc. Aluminium provides extreme durability and reduced weight and are often found being used in motocross riding and racing. Many MX bikes are fitted with aluminium bars as standard as the ability to absorb higher impact loads means they can withstand substantial loads without bending.