Deda pioneered the idea of a 31.7mm clamp. A graduated triple-butted center buldge resulting in a bar that is 25% stiffer while tipping the scales at a scant 207 grams. The Newton handlebar concept is a departure from a plain pipe to graduated triple butting at the critical point of stress. It's a superlight handlebar with outstanding rigidity characteristics. Double cable grooves. Deep, Shallow or Anatomic bend. Measured outside to outside.