Beautiful Details.At Studio Proper we don't believe in shortcuts. We do believe in honest design that is built to delight and to last Proper Bike Mounts are individually milled from solid Aluminium blocks. The pictures below show the initial profiles that have just completed the initial milling process. From here they are milled a second time to add finer detail and design nuances, before heading off to a fine sand blasting process. All components are then anodized before being packaged for shipping to you.