Seller notes

Pro-tek Front Sprocket 520 Pitch KTM 2018 2019 2020 2021 790 890 Adventure Duke 14T, 15T, 16T or 17T Pro-tek front sprockets are also completely CNC machined to exact tolerances from 4140 nickel-chromoly steel resulting in a quality product. None of the Pro-tek front sprockets are gear hobbed, but are lightened with drilled holes to save on rotating mass. Every lb of rotating mass equates to a 4 lb weight reduction. The sprockets are then case hardened to Rc 58-60 and finished with a zinc platin...

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