You've put a lot of time and effort into building your bike. You've spared no expense and overlooked no detail in making your bike perfect. Deda knows this and have made the Zero1 stem to give you top level performance at a very affordable price. The Zero1 is crafted out of an aluminum alloy commonly used in the construction of airplanes because of it's strength, how light it is, and it's ability to resist corrosion even when scratched. Add in the CrMo screws and you've got a stem that weighs in at less than 150 grams and will stand up to anything. The Zero1 has an 84° angle and a bar clamp diameter of 31.7mm. The Deda Zero1 stem features a black matte anodized color pattern and is 100mm in length.