Fits 1977 Yamaha YZ250 Front Jt Sprocket

Computer designed to achieve ultimate strength at minimum weight
Combines leading
edge technology with top materials
Meets or exceeds highest quality standards
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 made with high strength Austrian 7075 T
6 anodized aluminum
RAD Powersports aluminum sprockets are about 30% lighter than a comparable steel equivalent
Reduces un
sprung rotating weight and improves performance
New lightweight front sprockets available for some applications
Check for proper clearances when installing sprockets which differ from OEM size

RAD Powersports Steel Rear Sprocket 42 Tooth
Computer designed to achieve ultimate strength at minimum weight. RAD Powersports 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. RAD Powersports aluminum sprockets are about 30% lighter than a comparable steel equivalent, which reduces un-sprung rotating weight and improves performance. New lightweight front sprockets available for some applications. NOTES: When installing sprockets which differ from the OEM size, check for proper clearances before operating.