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aarn 144#47/49 Track Chainring (144BCD//47/49-Tooth)


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. Product is packaged in a custom letterpress printed envelope with a QC certification label and number, and shipped USPS Priority Mail (or First Class for International orders). More details and product photos are available at

Techical Details:
+Bolt Circle Diameter: 144-mm
+Number of Teeth: 47 or 49 (choose below)
+Supported Chain Type: 1/8-in Track/BMX
+Material: Anodized 6061-T6 Aluminum
+Finish: Black or Clear Anodized

Now shipping internationally!!


  • SILVER - 47 Tooth - 8% in stock
  • BLACK - 47 Tooth - 0% in stock
    Sold Out
  • SILVER - 49 Tooth - 0% in stock
    Sold Out
  • BLACK - 49 Tooth - 0% in stock
    Sold Out