Chop Saw USA Chainring - classic styling, modern quality, and made in the U.S.A. * Model: Chop Saw I * Teeth: 36T * Color: BLUE ANODIZED * Weight: 42g * 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: 110mm bcd (Don't know what size Bolt Circle Diameter you need? Measure center-to-center of two adjacent bolt holes on your crank spider and then refer to this chart: http://www.sheldonbrown.com/cribsheet-bcd.html ) * NOTE: This works great with our Chop Saw Spiders, however this WILL NOT WORK with a POWER DISC (the smallest ring that will work on a power disc is 38T) * MADE IN THE USA