The Lattice Chain ring is technically innovative and intrinsically beautiful. Our latest 2017 edition has an increased lattice thickness, increased plane thickness, and an increased lattice pitch to make it stiffer than ever before. It’s freaking light and euphemistically gorgeous. Precision CNC milled from a single piece of 7075 aluminum, the dual-plane cutouts maintain strength whilst reducing the chaining’s weight to sub ~100g. We had it tested at two facilities and it passed with flying colors, which is why we’re giving a lifetime warranty. We’ve radially brushed the ring and it is deep anodized in a range of colors to give the industrial feel. Technical Details: +Bolt Circle Diameter: 144-mm +Number of Teeth: 47 or 48 or 49 or 51 +Supported Chain Type: 1/8-in Track/BMX +Material: Anodized 7075-T6 Aluminum.