A high-quality designer track bicycle chainring with a unique tooth profile designed for maximum engagement and minimal wear. Manufactured in Peabody, Massachusetts, USA, from certified 6061-T6 aluminum plate stock. These chainrings are fully CNC machined. All edges (front and rear) are machine broken with a 45-degree 0.010-in deep chamfer.
The "aamerica b&w edition" features a black/silver/gray hand applied camouflage anodized finish. Each part is unique. Packed in custom packaging and shipped Priority (domestic) and First Class (international) USPS.
The packaging for this run is a limited edition letterpress printed silver to black ink split-fountain fade envelope.
+Bolt Circle Diameter: 144-mm
+Number of Teeth: 47 of 49 (choose below)
+Supported Chain Type: 1/8-in Track/BMX
+Material: Anodized 6061-T6 Aluminum
+Finish: Black/Silver/Gray Hand Applied Anodized Finish
More details at 44rn.com