Origin8 Alloy Non-Ramped Chainrings, 39t, Black Go to amazon.com Related posts Top 16 recommendation bmx chainring for 2022 Feature6061-T6 alloy replacement rings8, 9 and 10-speed compatibleBlack anodized with silver CNC machined teethMade in U.S.A. DescriptionCHAINRING OR8 130mm 39T BK/SL