Seller notes

Fits 1990 Yamaha YZ490 Steel Front Sprocket Made from durable chromoly SCM420 steel alloy Heat treated for maximum strength Hand finished to meet high quality standards Designed for maximum durability Fits a variety of applications RAD Powersports Sprockets are made from the latest generation of computer design and control metal cutting equipment for maximum durability. Front sprockets are made from chromoly SCM420 steel alloy. All sprockets are heat-treated and hand-finished to meet or exceed t...

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