Pro-tek Made For Yamaha RZ500 RZ-500 Front and 49 similar items

Additional Details ------------------------------ Product description: This Pro-tek 530 Pitch (3/8" chain roller width) front sprocket is completely CNC machined to exact tolerances from 4140 nickel-chromoly steel resulting in accurate tooth profiles. This sprocket is available in four tooth sizes - 14T, 15T, 16T, 17T. This is Not gear-hobbed like other sprockets. This insures that the teeth fit precisely on the chain rollers insuring maximum chain and sprocket life along with a more efficient power transmission. The sprocket is lightened with drilled holes to save on rotating mass. Every lb of rotating mass equates to a 4 lb weight reduction. The sprocket is case hardened to Rc 58-60 and finished with a silver zinc plating for added durability and protection from corrosion. This sprocket is brand new manufactured in the US from Pro-tek, a leading manufacturer in the motorcycle industry for over 25 years. Applications: 1984-1986 Yamaha RZ-500 FL/N/S 15T Front/40T Rear Stock Gearing, 530-? Links Stock Chain Your gear ratio is the ratio of teeth between the front rear sprockets. This determines how engine RPM is translated into wheel speed by the bike. Changing sprocket sizes, front or rear, changes this ratio, therefore changing the way your bike puts power to the ground. With respect to stock gearing, installing a smaller front sprocket (fewer teeth), or a larger rear sprocket (more teeth), provides a lower gear ratio increasing the acceleration of the motorcycle but decreasing its top speed. Conversely, installing a larger front or smaller rear provides a higher ratio which decreases the acceleration but increases top speed. Every one tooth change in the front is equal to a 3 tooth change in the rear. So a rear change more than two teeth means adding or removing chain links.