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  • Computer designed to achieve ultimate strength at minimum weight
  • JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value
  • Every sprocket meets or exceeds the highest possible quality standards
  • Sprockets are heat-treated and beadblasted to reduce material surface tension
  • Front sprockets made with top-quality Japanese C45 high carbon steel and SCM415 chromoly steel alloy
  • Steel rear sprockets made with top-quality Japanese C45 high carbon steel
  • Aluminum rear sprockets are made with high-strength Austrian 7075 T-6 anodized aluminum
  • JT aluminum sprockets are about 30% lighter than a comparable steel equivalent, which reduces un-sprung rotating weight and improves performance
  • Lightweight front sprockets available for some applications
  • NOTE: When installing sprockets that differ from OEM sizes, check for proper clearances before operating.
  • JT SPROCKETJTR1857.40Description Comming Soon
  • JTR1857.40
  • JT Sprockets
Dimensions9.8 x 8.6 x 0.4 inches

JT Sprockets JTR1857.40 40T Steel Rear Sprocket

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Number of Teeth:40