USAmade Sharktooth PRO CXR 110mm and 130mm BCD Cross / Road / Fixie / Gravel chainring, Black Anodized Finish with Teflon treatment, 5-Bolt (Dual Pattern), Alternating "Thick-Thin" tooth profile for chain retention- the latest technology, Sharktooth Anti-chain drop profile for excellent chain retention. The CXR1 rings are designed in both 3/32" and 1/8" options for 1x1, 1x8, 1x9, 1x10 and 1x11-speed configurations. - Made in the U.S.A. Image may not depict current engraving.