Moose Racing Aluminum Rear Sprocket 37T Black M630-61-37

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  • The 7075 T651 aluminum we use for these sprockets receives an extra tempering which reduces distortion and provides optimal thickness vs. typically thinner 7075 T6 sprockets
  • We leave the "cleaning" grooves out of our sprockets, because more aluminum contacting your chain means longer chain and sprocket life
  • 100% machined, no stamping or grinding
  • Moose Racing rear sprockets come anodized
  • Optimal tooth thickness results in maximum tooth and chain contact
  • Made in the U.S.A.
  • Sample image used for product representation