Like the Box One™ Cromo handlebars, Flat Cromo bars are super stiff and custom made from the highest quality 4130 chrome-molybdenum. They feature a proprietary 13-butted taper from 22.2 Ø at the grip area to 31.8 Ø across the clamp area. The incredible stiffness of the 31.8 oversize bar improves bike handling while putting more power into your pedal stroke. Flat Cromo bars, however, have a very flat 3-degree back sweep. FEATURES Oversized™ Technology 31.8 Bar Bore 13 Butted Tubing Knurlee Clamping Area Powder Coated SPECIFICATION 8-Inch 8.5-Inch Clamp (Ø) 31.8mm 31.8mm Material 4130 Chromoly 4130 Chromoly Sweep 3° back, 2° up 3° back, 2° up Weight 787 grams / 27.7 ounces 797 grams / 28.1 ounces Width 71.7 cm / 28.25 inches 71.7 cm / 28.25 inches