Black Ops Micro Drive Dual Core UL BMX Chainring, 25t, Purple/Black Go to amazon.com Related posts Top chainring spacers 2mm for 2022 FeatureFits 3-piece 22mm BMX cranks2mm 6061 aluminum coreIncludes adapter for 19mm spindles DescriptionCHAINRING BK-OPS 25T MICRO DRIVE D/C PU/BK