Description The Velo Orange Threadless Stem 31.8mm is a simple & stylish option for any sick build out there. With a 6° / – rise, it’s flippable to really dial in your fit. 4 bolt handlebar clamp. Length is measured center-to-center along extension. Velo Orange Threadless Stem 31.8mm Specs Handlebar Clamp: 31.8mm Steerer Clamp: 1-1/8″ Stack Height: 40mm Weight: 140g (100mm size)