Chop Saw Chainring from Porkchop BMX for BMX and single speed bicycles - classic styling, modern quality, and made in the U.S.A. * Model: Chop Saw I * Teeth: 41T * Color: GOLD ANODIZED * Weight: 73g * Material: 6061 aluminum alloy * Chain size: 3/32" (this chainring will work with either a 3/32" or 1/8" chain - 3/32" is recommended for best performance and optimum weight savings) * Crank interface: 110 bcd / 130 bcd * MADE IN THE USA